Historical Document · 1965
Catalog 11000, Section R: Central Office Test Equipment — Automatic Electric, Cat. 11000 sec. R (Sep 65) (1965)
39 pp, image only (no OCR). C-relay test sets, linefinder test stands, switch test sets
Historical Document · 1965
39 pp, image only (no OCR). C-relay test sets, linefinder test stands, switch test sets
Section of TELEPHONE EQUIPMENT & SUPPLIES CATALOG ISSUED SEPTEMBER, 1 CENTRAL OFFICE TEST EQUIPMENT Relay and Switch Adjusting Test Sets Page C Relay Test Sets....000.0. 0000.00.00. cece eee 2 Dialing and Talking Test Sets.......0.0.......0.0.. 2 Linefinder Switch Test Stands...................... 2 Type 3A Resistance Test Boxes.................0.-. 3 Reverse Battery Test Circuits. .............0....05. 3 Rotary Test Sets for Absence of Ground Searching Switches... 0.00 eee 3 Rotary Test Sets for Battery Searching Selectors. ..... 4 Type TE 89 Varying Machines..................... 4 Type 26A Switch Testers........0.....0..00..0005. 4 Type 28 Semi-Automatic Routiners................. 5 Model S Current Flow Test Sets.................... 5 Applique Meter Circuits for Current Flow Test Sets... 5 Toll and Intertoll Trunk Test Equipment Code 101 Test Terminations........................ 6 Milliwatt Test Line Circuits........0.....000.0...... 7 Code 100, 102 and 103 Test Terminations............ 7 81 DB Attenuators............0...0 000.0200 0 eee 7 MF Pulsing Trunk Test Sets....................... 8 Negative Impedance Repeater Test and Installers’ 8 CUS ee Type 27A Signaling Test Sets....0....0.0......00.. 9 Toll Pulse Repeating Test Sets...................... 9 Re-Ring Relay Test Sets...........0..0...0.0. 0000. 10 Type 25 Signaling Test Sets.......0.0...0....0000... 10 Type 24 Single Frequency Test Sets................., 10 Non-Synchronous Reverse Battery Test Line Equipment.............00000 000 0c cee 11 End Office Communication and Test Trunk Circuits... 11 Test Tone Generator 1000-Cycle, 1 Milliwatt Circuits and Distribution Circuits...........0..... 12 End Office Transmission Test Circuits............... 12 Transmission Test Connector Circuits............... 13 Type 800 Hand Test Telephone..................... 13 Local Trunk Test Equipment Test Line Circuits for Local Offices.................. 13 Local Pulse Repeating Test Sets.................... 14 Pulse Speed and Percent Break Test Sets............ 14 Type 180L Local Test Panels..........00..0.....00.. 15 Type 21A Wire Chiefs Test Units..........0....0... 16 Type 22 Wire Chiefs Test Units..... .............. 17 Type 23 Wire Chiefs Test Units.................... 17 Toll Board Test Equipment Impulse Sender Test Sets..........0.000.0.....40-. 18 Routine Test Sets for Impulse Senders and Digit Relays......0.00 00.000 ce ee 18 Portable Test Sets for Type 31 Toll Board Trunks.... 18 Type 180 Toll Test Panels... 2.0 .....00.0...000..0004. 19 Automatic Line and Local Equipment Routiners Automatic Equipment Routiners.................... 20 Type 2A Automatic Line Insulation Routiners........ 20 Printrollers...000 000 ee eee 21 Automatic Trunk Routiners with Transmission Loss Measuring.......... 00.0000. ccc eee 22 SATT Test Equipment Type 59 Ticketer Test Sets........... .. Type 62 Ticketer Test Sets....0....0.0..000.. Type 62 Position Test Sets................. SATT CKO Operators’ Position Test Sets. . Type 59 SATT Monitor Panels........... Type 62 SATT Monitor Panels.................... Party Identity Testing Circuits for 4-Party Type 62 SATT without Spotter Battery. . .- Dial Speed and Party Identity Test Circuits. . Lou. SATT System Type B Terminal Detection Test Sets... Traffic Study Equipment Trafficorders.... 00.0. es Answering Time Recorders with Weighting Facility... Type 80143 Alston Electronic Traffic Scanners~~- Portable. 000.0 ee Type 80151 Alston Electronic Traffic Scanners--- Permanently Mounted Alston Portable Service Observing Equipment—- Tape Type... 0.0000 ee ee Service Observation Equipment..................-.. Dial Tone Delay Recorders.............0...0..2-500-- Miscellaneous Test Equipment Type 800 Hand Test Telephone. . McAllister Automatic Dialing Routiners and Grade of Service Recorders................-..-.- Routiner Multiple Calling Line Selectors.......... Type P-672-B Proctor Pulse Generators. . Cee Type P-71 Proctor Universal Test Adapters. . Lees Type P-70 Proctor Switch Routining Adapters. . Type P-652 Proctor Pulse Distortion Analyzers. . . Type P-1035 Proctor Remote Pulse Indicators........ Type F4 Frahm Portable Frequency Meters...... . Type MF-15 Frahm Miniature Portable Frequency Meters....0 000 ee . Type TTS-49AE Northeast Electronics 6-Frequency. 1-Milliwatt Tone Generators..................... Type TTS-39BAE Northeast Electronics 1 Kilocycle, 1-Milliwatt Tone Generators....... Shallcross Test Sets.........00..00... Busy Clips................ Cord and Test Clips.......0...........00.0.000.. Lineswitch Test Pencils................... . Bank Busying Tools.......00....00.00 00002 v eee Harmonic Ringer Boxes... . Test Lamps... 0... 220. Buzzer and Talking Test Sets... Retractile Cord and Plug (or Clip) ‘Assemblies. . Test Plugs........0.0. 0.0.00 00000005- Test Plugs and Cords.............0..02000000 020000 Test Cords... 00.0. ee Ground Cord Assemblies................. Test Plug and Cord Assemblies............ Switch Supports. . . Cie ee Switch Test Stands.....................0-. AUTOMATIC ELECTRIC COMPANY NORTHLAKE, Copyright ©1965, by Automatic Electric Company * ILLINOIS 60164 / TELEPHONE (312) 562-7100 Printed in U.S.A. & Catalog 11,000-R-65 965 26 26 27 27 28 29 CENTRAL OFFICE TEST EQUIPMENT AUTOMATIC ELECTRIC C Relay Test Sets The C Relay Test Set is a portable unit designed to check the release time of the C relay (or other relays performing similar functions) of Strowger two motion switches. This test set permits testing of the C relay in a loop or simplex pulsing switch. The C Relay Test Set is a special dial arranged to send two groups of pulses separated by a checking period of constant and predetermined length. The ‘‘C’’ relay should release within this timed period. The following features are provided: Arranged for loop and simplex pulsing. The dial is adjusted to a speed of 15.0 to 15.5 pulses per second and about 61.5% break. When the digit “0” is dialed, five pulses (open loop or open simplex) are transmitted, followed by a closed circuit checking interval of 155 milliseconds duration, which in turn is followed by three more pulses (open loop or open simplex). Spark suppression is provided for the pulsing contacts. Width, 4 inches; height, 4 inches; depth. 3%, inches. Order No. Description Bash H-880623-3 C Relay Test Set.................. $25.00 REFERENCE: Technical Bulletin 108-696. Dialing and Talking Test Sets For Simplex Dialing Intertoll Selectors This test set is a portable unit which permits testing of sim- plex dialing intertoll selectors and trunks. Tests which can be performed by using the unit include monitoring, dialing, talking, and supervision. The set can be used with an external pulsing source for pulsing tests. Transmission battery is supplied by the switch trunk under test. Overall dimensions: 8°16x7%2x414 inches. Price Order No. Description Each H-880859-1 Dialing and Talking Test Set....... $130.00 R-2 Prices are subject to ch Linefinder Switch Test Stands The Linefinder Switch Test Stand is designed to perform tests on linefinders which have been removed from the shelf for repair. It is not intended for a routine inspection of line- finders. All commonly used Automatic Electric Company, Strowger 2 motion linefinders can have their basic operations tested. The Linefinder Switch Test Stand provides means for per- forming the following tests on linefinders: Vertical and rotary stepping. Continuity of all leads to the linefinder switch jack. Continuity of a closed circuit through all the relay break con- tacts with the relay normal, and for an open circuit with the relay operated. Continuity of a closed circuit through all the relay make contacts with the relay operated, and for an open circuit with the relay normal using the test prod with the lamp assembly. Continuity of all wiper circuits. The Linefinder Switch Test Stand is mounted on a metal platform measuring 13°42 inches wide and 10142 inches deep. On the left side of the platform is a metal box which contains the test equipment. On the right side of the platform a line- finder shelf jack is securely mounted in a mounting bracket. . Price Order No. Description Each H-881444-1 Used when linefinders have magnet interrupter springs with break con- tacts, and cam springs place battery on test Llead.. 2.2.2... $125.00 H-881444-2 Used when linefinders have magnet interrupter springs with make con- tacts, and cam springs ground the guard (G) lead... 125.00 REFERENCE: Technical Bulletin 108-716. without noti AUTOMATIC ELECTRIC CENTRAL OFFICE TEST EQUIPMENT Type 3A Resistance Test Boxes The Type 3A Resistance Test Box is a portable unit de- signed to place a known resistance value into a test circuit. The primary purpose of the resistance test box is to regulate the amount of current flowing through the relay windings or other electrical apparatus to which it can be connected. This resistance box determines whether a relay is operating correctly. The standards for individual relay operation are specified on relay adjustment sheets which the manufacturer issues for each circuit incorporating relays. A current of a given value, flowing through the windings of electromagnetic coils, causes the armatures of the associated relays or other devices to operate, or not to operate within margins, depend- ing on the design of the circuit or switching device. It utilizes slow-blow fuses and features a reverse-battery key that reverses polarity for checking polarized relays; and a shunt key to get full battery current for maximum armature pull-down. The Type 3A Resistance Test Box is furnished with one 2-conductor battery supply cord (D-543175-C). It is housed in a gray metal cabinet with metal carrying handle and detachable cover. With cover, the cabinet is approximately 734¢x 105¢x6!l4% inches. Price Order No. Description Each H-884771-1 Type 3A Resistance Test Box...... $220.00 Reverse Battery Test Circuits The Reverse Battery Test Circuit is arranged to provide distinctive tone and reversal flashes to identify correct ter- minal. It is also used for the application of marginal tests to connectors. Starts to function after 500 ms. The operational equipment of the Reverse Battery Test Circuit is mounted on a steel base and wired to a multi- contact jack. Price Order No. Description Each DH-61939-A40A_ Reverse Battery Test Circuit (1 Ckt).. 2... a oF, DH-61939-A41A Reverse Battery Test Circuit (2 Ckts).............. J, *Prices will be furnished on request. Rotary Test Sets For Absence of Ground Searching Switches The Rotary Test Set is a portable unit designed to test for proper rotary action of absence of ground searching selectors and trunk hunting connectors. The test set permits test- ing of switches with 10 or 20-trunks per level. The test set is equipped with a 10 and 20-point bank busying tool or with a 10- point bank busying tool only. In addition to the points mentioned above, the test set in- cludes the following features: Provides a no stop test in which the switch under test rotates its wipers over the contacts on the test level. Provides a stop test in which the switch under test rotates its wipers to a predetermined contact on the test level. Provides loop or simplex pulses. The test set consists of a cabinet 9 inches wide, 914 inches high and 5 inches deep. The cabinet is made of plain oak and finished in dark oak, presenting an attractive appearance. The front panel is hinged, providing ready access to the in- terior of the cabinet. Price Order No. Description Each H-64618-1 Equipped with 2-bank busying tool. One for 20 trunks per level and one for 10 trunks per level............ $270.00 H-64618-3 Equipped with 1-bank busying tool for 10. trunks per level Prices are subject to change without notice. R-3 CENTRAL OFFICE TEST EQUIPMENT AUTOMATIC ELECTRIC Rotary Test Sets For Battery Searching Selectors The Rotary Test Set is a portable unit designed to provide an operate and non-operate test for relay-interrupted battery- searching 10 and 20-trunk level selectors with or without split C lead. This test set is not arranged to test selectors employ- ing 3-pole relays. In addition to the points mentioned above, the test set includes the following features: Provides a check on both electrical and mechanical characteristics of the selector. Routing test limits may be applied to the equipment as re- quired. Insures good stopping of selectors and no double- stopping because of wiper overthrow (improper mechanical adjustment) under normal operating conditions. Provides loop or simplex pulses. The test set’s functional equipment is housed in a gray baked enamel metal case measuring 8 inches wide, 8 inches high and 8 inches deep. The case is provided with a carrying handle. A hinged, sloping front panel, provides access to the interior of the case. Order No. Description race H-881174-1 Rotary Test Set for Battery Searching Selectors................. $251.00 Type TE 89 Varying Machines The Type TE 89 Varying Machine is a portable test set de- signed to test the ability of Strowger type switches to follow dial pulses under various operating conditions. Extreme line conditions can be simulated for testing connector and selec- tor switches. Because the test set is portable the switches can be tested in their permanently mounted location. The following tests can be performed using the Type TE 89 Varying Machine: loop test, leak test, magnet test, and C relay release test. The varying machine can also be used in con- junction with the Local Pulse Repeating test set, Toll Pulse Repeating test set or the Type 26A Switch Tester, to provide a continuous source of pulses and to simulate various line conditions. The Type TE 89 Varying Machine is supplied with the necessary cords for interconnecting the test set and the equipment to be tested. These consist of a battery cord, switch test cord, and a magnet test cord. A remote control test set containing six push buttons, also located on the test set control panel, is provided to permit the tester to perform tests at a maximum of 16 feet from the test set. The equipment comprising the Varying Machine is mounted in a gray pebble finish enameled aluminum case. The case measures 143% inches wide, 814 inches high and 131% inches deep. The case is equipped with a carrying handle and a re- movable latch type cover. Approximate weight, 19 pounds. Order No. Description Each H-882240-1 Type TE 89 Varying Machine...... $575.00 REFERENCE: Technical Bulletin 108-517. Type 26A Switch Testers The Type 26A Switch Tester is a portable, self- contained unit which permits the performance of functional testing, at the switch shelf, of a wide variety of step-by- step telephone equip- ment. The tester may be used alone or may be used in conjunction with a Varying Machine. The tester is capable of testing the following switches: local; toll and combination connectors; toll transmission selectors, with or without C lead; paystation repeaters; coin control switches with adapter; re- verting call switches; directory number reverting call switches; and directory number reverting call connectors. In addition to the points mentioned above the tester has the following features: Remote Control Set for testing from loca- tions away from the test set. Arranged to reseize or release by operator’s option, the switch under test after completion of testing. Provides either a leak resistance or loop resistance balanced on each side of the loop. Jacks for operator’s headset or handset for monitoring 2-wire toll transmission circuits to determine if busy before seizure or to check various tones that may be returned by the switch under test. Indicates when connected to a busy switch before seizing it. Checks local, toll, and combination connectors for busy, idle, ring, false trip, answer, transmission and release. Checks coin control features of toll transmission selectors. Simulates coin deposit condi- tions when testing paystation repeaters and checks return of coin control battery from repeater. Arranged to detect either bridged or divided ringing. Has provision for imposing direct ground when testing trunk hunting connectors. Provides a timed open period on lead EC for an automatic ring start sig- nal when testing toll connectors. The test set is housed in a gray metal case. The case has a metal carrying handle and detachable cover. The overall measurement of the test set including the cover is 1436 inches wide, 814 inches high and 134% inches deep. Approximate weight, 40 pounds. Order No. Description Eat H-885068-1 Type 26A Switch Tester........... $700.00 REFERENCE: Technical Bulletin 108-706. R-4 Prices are subject to change without notice. AUTOMATIC ELECTRIC CENTRAL OFFICE TEST EQUIPMENT Type 28 Semi-Automatic Routiners The Type 28 Semi-Automatic Routiner is a portable test unit designed to test individual selector switches, connector switches, or inter-office trunk repeaters. The Routiner com- bines the testing facilities of a semi-automatic test set with a pulsing test set in one portable unit, designed to operate on an exchange voltage of 48.5-50-volts, d-c. All two-digit connectors, frequency-selecting connectors that use the frequency digit first or last. and 200-line connec- tors may be tested with the Routiner. Some of the tests which may be performed with the Type 28 Semi-Automatic Routiner are: selector cut-in and release; selector rotary speed; selector bank continuity; connector ring and talk, or busy; loop, leak, and standard pulsing; line polarity. Tests to be performed by the Routiner are determined by the test cord used (A or B, furnished with the Routiner) and the controls, indicators, and jacks on the control panel. The keys and switches on the control panel are used to set up the required conditions under which the various tests are to be performed. A supervisory lamp provides illumination for both switch inspection and test supervision. Test cord‘‘A’”’ is used for tests using the automatic functions of the Routiner, such as selector cut-in and release, selector bank continuity, connector ring and talk or busy, and trunk circuit repeaters. Test cord‘‘B”’ is used for pulsing tests under various loop and leak conditions. Both test cords extend pulses at a constant speed of 12 pps. In addition to the points mentioned above, the Routiner provides many test features, some of which are: Automatic release of switch after each test. A definite time interval be- tween successive digits dialed for any test number. Provides a monitoring feature for an audible check of test tones and transmission. When dialing through wink repeaters, the Routiner stops dialing when reversed polarity is encountered; however, it will resume dialing when polarity is restored to normal, Pulse ratio of 68.5 percent break or 31.5 percent make for all loop tests and LP pulsing conditions. Pulse ratio of 60.5 percent break or 39.5 percent make for all leak tests and LK pulsing conditions. Selection of a loop seizure resistance trom 2,000- to 3,100-ohms. Selection of LP, LK, or STD pulsing conditions. Pulse ratio of 61.5 percent break or 38.5 percent make for STD pulsing condition. The Type 28 Semi-Automatic Routiner is housed in an aluminum case having a gray pebble baked enamel finish. Two carrying handles are conveniently located, one on each end, to facilitate handling. Approximate dimensions: width, 20!44 inches; depth, 1114 inches; height, 105% inches. Price Order No. Description Each H-885113-1 Type 28 Semi-Automatic Routiner. $1050.00 REFERENCE: Technical Bulletin 108-454. Model S Current Flow Test Sets TheCurrent Flow Test Set is a portable unit used to test the opera- tions of relays in central office equipment. The current flow to a particu- lar relay under test can be controlled at a set value to ascertain that the relay is functioning within its specified limits. The test set issoequipped that the relays can be tested without removal from their mounting. The test set has three controlled meter ranges, .030, .150, and .750 amperes. Each meter range is fused in- dividually. Relays can be tested at their operate and non- operate values by presetting the operate and non-operate potentiometers to the proper resistance value. A key is pro- vided which places either the operate or non-operate potenti- ometers in the circuit, depending on the position the key is operated to. This facilitates performing both tests without changing the hookup. The polarity of the current flow to the relay under test can be reversed by operation of a key. Operation of this key also reverses the polarity of the current flow in the test set circuit. If an auxiliary resistance is required, that is a resistance that cannot be provided by the operate or non-operate range potentiometers, it can be connected across the auxiliary re- sistance terminals. Hold and release tests on special relays can be performed. A key is provided to allow for saturation of a relay coil. The test set meter can also be used to measure the current flowing in an external circuit. The Current Flow Test Set is mounted in a gray metal case. The case has a metal carrying handle and a detachable cover. Spare fuses and a circuit label are mounted on the underside of the cover. Dimensions: Width, 1214 inches; height, 7% inches; depth, 114545 inches. Order No. Description Each H-882790-1 Model S Current Flow Test Set..... $295.00 REFERENCE: Technical Bulletin 108-712. Applique Meter Circuits For Current Flow Test Sets The Applique Meter Circuit for Current Flow Test Set is a portable unit used in conjunc- tion with the current flow test set (Model S or earlier models) for low current relay measure- ments. As with the current flow test set alone, it is possible to test relays without removal {/..: from their mountings. The applique meter circuit has a controlled meter range of .005 ampere. This circuit has |= : ~~ its own fuse. Testing operations are done for the most part on the main current flow test set. The operation of a key provides additional series resistance if required. All necessary patch cords are provided. Mounted in a gray metal case with metal carrying handle and a detachable cover. Dimensions: width, 10% inches; height, 654 inches; depth, 7% inches. Order No. H-884051-1 REFERENCE: Technical Bulletin 108-712. Description Applique Meter Circuit for Current Flow Test Set s 12 2.253 3. ; © LIA ES rae ane O \ MI ere Oe | oO \ mine. . & “ © Price ee a Bach |ONS 7 ©. beens $155.00 5 we Prices are subject to change without notice. R-5 Mere: CENTRAL OFFICE TEST EQUIPMENT AUTOMATIC ELECTRIC Code 101 Test Terminations The Code 101 Test Termination is rack mounted equipment used for testing of intertoll trunks. It provides a communication and test line into a toll testboard or test position which can be reached by any dial trunk in the switching system served by that test position. It is used for reporting trouble, making transmission tests, etc. The following features are provided on the Code 101 Test Termination circuit: Fourth wire (EC lead) supervision. Supervision either when call is answered or on trunk seizure. Idle line termina- tion. Ringback tone. Delayed flashing line lamp. Optional flashing recall. Fixed pad via-net-loss operation for intertoll tandem service. Arranged for re-ring under control of battery and ground connected from cord circuit, opening sleeve, and releasing sleeve relay. Arranged to absorb one digit before signaling an incoming call. The functional equipment of the Code 101 Test Termination is mounted on a steel base measur- ing 1834 inches wide and 6g inches high. Order No. H-83207 (Option 1) H-83207 (Option 2) H-83207 (Option 3) H-83207 (Option 4) H-83207 (Option 5) H-83207 (Option 6) Description Used where intertoll trunks are loop pulsing type and office is equipped with rotary-type ringing machines. Answer lamps are battery connected... 200.0000. ee ee Used where intertoll trunks are simplex pulsing type and office is equipped with rotary-type ring- ing machines. Answer lamps are battery connected.......0 000.000.000.022 e eee eee eee Used where intertoll trunks are loop pulsing type and office is equipped with rotary-type ringing machines. Equipped with an answer lamp distributor relay and a night alarm lead. Answer lamps may be battery or ground connected.........0.0.0.0..00 000 bce eee Used where intertoll trunks are simplex pulsing type and office is equipped with rotary-type ring- ing machines. Equipped with an answer lamp distributor relay and a night alarm lead. Answer lamps may be battery or ground connected... 0.0.00... Used where intertoll trunks are loop pulsing and office is equipped with rotary-type ringing ma- chines. Equipped with an answer lamp distributor relay and night alarm lead. Provides for delayed flashing line lamp. Answer lamps are ground connected..................0.0.0.4. Used where intertoll trunks are simplex pulsing and office is equipped with rotary-type ringing machines. Equipped with an answer lamp distributor relay and night alarm lead. Provides for delayed flashing line lamp. Answer lamps are ground connected.........0..........00000. Prices will be furnished on request. Price Each AUTOMATIC ELECTRIC CENTRAL OFFICE TEST EQUIPMENT Milliwatt Test Line Circuits The Milliwatt Test Line Circuit is designed for one-way transmission testing of toll connecting trunks in 600-ohm office impedance. This test line circuit is connected to a one milliwatt 1000- cycle source for transmission testing. The features provided in the Milliwatt Test Line Circuit are as follows: Provides idle circuit termination. Trips connector ring cut-off relay. Connects testing power for nine seconds and dis- connects power for one second. This cycle is repeated continuously as long as the connection is held by the calling end. The operational equipment of the Milliwatt Test Line Circuit is mounted on a steel base and can be provided to mount on a 19- or 23-inch rack. Price Order No. Description Each DH-83063-A72A Mounts on 23-Inch Rack... 00000 $132.78 DH-83063-A74A Mounts on 19-Inch Rack.... 00.000. 0 0. ee ee 96.97 Code 100, 102 and 103 Test Terminations Code 100, 102 and 103 Test Terminations are used for testing of intertoll trunks. The equip- ment is rack mounted. Code 100 provides a termination for balance and noise testing. The features are as follows: Provides off-hook supervision to calling end as long as trunk is held by calling end. Provides a termination (600 ohms plus an MF capacitance) which simulates the nominal impedance of the incoming trunks under test. Code 102 provides connection to a one milliwatt 1000-cycle source required for one-way trans- mission testing. The features are as follows: Returns an off-hook signal when the testing power is connected. Returns an on-hook signal and removes testing power after ten seconds. Provides an idle circuit termination in the on-hook condition. Code 103 provides termination required for overall tests of the signaling and supervisory fea- tures of intertoll trunks. The features are as follows: On seizure the test trunk returns an off-hook signal. On receipt of a ring forward (re-ring) signal the test trunk returns an on-hook signal. On receipt of second ring forward (re-ring) signal the test trunk returns 120 IPM flash. The functional equipment of the Code 100, 102 and 103 Test Terminations is mounted on three steel bases which are joined together by two steel strips. Overall dimensions: width, 183 inches; height, 6!!% inches. Price Order No. Description Each DH-83063-A70A Consists of Code 100, 102 and 103 Test Terminations. Used where intertoll trunks use simplex puls- INQ. ee eee $242.85 DH-83063-A75A Code 102 Test Termination. Used where intertoll trunks use simplex pulsing.............0......2.. 128.52 DH-83063-A79A Consists of Code 100, 102 and 103 : Test Terminations. Used where — 2 intertoll trunks use loop pulsing. 231.39 ial wy 81 DB Attenuators The 81 DB Attenuator is a balanced 600-ohm attenuator which can be used in various ways when conducting transmission tests. The Attenuator is made up of seven balanced resistance Dimensions: height, 4 inches; width, 8 inches; depth, 6 pads of the ‘‘O”’ (square) and ‘‘H”’ type. These are 600-ohm inches. pads and provide a loss range of 0 to 81 db under control of seven turn keys. Pri This unit will dissipate 200 mw. continuously and 500 mw. Order No. Description Each for short periods without impairing accuracy after cooling. H-883924-1 81 DB Attenuator........... cone BL, The 81 DB Attenuator is housed in a portable box. *Price on application. Prices are subject to change without notice. R-7 ny rennaeee CENTRAL OFFICE TEST EQUIPMENT AUTOMATIC ELECTRIC MF Pulsing Trunk Test Sets The MF Pulsing Trunk Test Set is a portable test set designed for making operational tests directly on multi-frequency trunk circuits. It is useful primarily for investigation and clearance of trouble. Order No. Description H-884132-1 MF Fulsing Trunk Test Set... The following features are provided: Accesses multi-frequency trunks directly at trunk test jacks. Provided with lamp for trunk busy indication. Has facility for monitoring a trunk. Provided with keyset and MF supply for MF pulsing. Arranged to recognize supervisory signals such as seizure, stop-dial, re-order, ATB. and answer in the same manner as a toll board position. Provided with a jack for operator’s headset for talking and receiving. Arranged so that dialing tests can be made without operator’s headset being connected. Transmission battery is supplied from trunk under test on a simplex basis. Has jack and binding post for connecting a transmission measuring set. The test set’s functional equipment is housed in a sturdy metal case provided with a lock-on cover and carrying handle. Dimensions: height, 7! inches; width, 10 inches; depth, 12 inches. Price Each Leen eee eee $375.00 Negative Impedance Repeater Test and Installers’ Sets The Negative Impedance Repeater Test and Installer’s Set (portable) contains all of the com- ponents to make repeater gain, Line Building Out, and return loss measurements. It is specifically designed to be used with the AT-6 Negative Impedance Repeaters. Contains a built in H-88 (HC) Line Building Out unit to aid AT-6 repeater alignment on loaded facilities. Has provisions for connecting a precision network to aid in making structural return loss measurements. Can check AT-6 amplifier per- formance with the overload test contained. Contains a dial access for lines having a dialed termination available. Can check AT-2 and AT-3 as well as AT-6 standard repeater gain. Can measure separately the series section and shunt section gain of an AT-6 repeater, as well as the combined repeater gain. Requires only 48-volt exchange battery. Contains a built-in transistorized oscillator capable of being varied from 500 cps to 3,000 cps in 500 cycle steps. Or, the oscillator can be used as a sweep generator over the frequency range of 2,000 to 3,000 cps. Contains a built-in transistorized detector for line repeater measurements. Oscillator and detec- tor are equipped with jacks to permit external use. Comes equipped with two cables. One 12-foot 8-conductor cable for connection to the repeater in the facility and for supplying 48-volt d-c power to the test set. One 6-inch, 4-con- ductor cabie used for shorting out the network when making gain checks on the repeater. Aluminum case with gray enamel finish; removable cover. Dimensions: height, 1714 inches; width, 20 inches; depth, 714 inches. Weight, 27 pounds. Pri Order No. Description Each H-884426-1 Negative Impedance Repeater Test and Installer’s Set............ $650.00 REFERENCE: Technical Bulletin 854-523. R-8 Prices are subject to change without notice. AUTOMATIC ELECTRIC CENTRAL OFFICE TEST EQUIPMENT Type 27A Signaling Test Sets The Signaling Test Set is used in conjunction with a toll test board for checking and analyzing the signaling paths of toll or intertoll trunks which are equipped to send E and M, or other sig- naling. The test set may be furnished either as a rack-mounted unit, which is attached to the toll test board, or as a portable unit. Equipment functions in both forms identically. The test set, which provides a means for making a fast check of the intertoll trunk signaling system or the terminating trunk relay equipment, permits the test operator to perform the follow- ing test functions on the signal leads: monitoring, measurement of current, signaling, and measure- ment of percent make-percent break of pulses. The Signaling Test Set in both rack-mounted and portable options (with the exception as noted) is furnished with the following cord assemblies as accessory equipment: two 3- conductor patch cords fitted with single plugs on each end; two 6-conductor patch cords fitted with twin plugs at each end; and one 2-conductor patch cord (portable test set only). Control components for the test set comprise the following: a set of equipment conditioning, connecting, and pulsing lever keys; a push key for use in meter calibration; a variable pulsing-source, two milliammeter-sensitizing turn keys; and potentiometer knob. Indicators include 3 milliameters: 2 meters to measure cur- rents of important leads, and 1 meter to show percent make- break of pulses and the speed of the pulses from line and/or drop equipment. A strip of jacks permit interconnecting the test set to its associated equipment. The rack-mounted Signaling Test Set’s equipment is mounted on a plastic faced wood panel which measures 23 inches wide and 8224 inches high. The test set’s relay equip- ment is protected in use by removable metal covers. The portable Signaling Test Set’s equipment is housed in a metal case provided with a lock-on cover and a carrying handle. The unit’s measurements are 143% inches wide, 814 inches high, and 135% inches deep. Milliameter sensitiv- ity range is read on one of two scales—150-0-150 and 0-30-0. Order No. Description Each H-885125-1 Portable Signaling Test Set...............-. $750.00 H-884986-1 Rack-Mounted Signaling Test Set............ 795.00 REFERENCE: Technical Bulletin 100-709. Toll Pulse Repeating Test Sets The Toll Pulse Repeating Test Set is a portable, self-contained unit used for testing of pulse repeating relays in toll and intertoll trunk circuits and in composite signaling circuits. This test set may be used alone, with the dial supplying trains of pulses, or in conjunction with a Varying Machine used as a pulse supply and/or with the Current Flow Test Set. In addition to the points mentioned above, the Toll Pulse Repeating Test Set includes the following features: Provides a ratio meter to measure the pulse ratio being de- livered by the test set or to measure pulses from the circuit under test. Provides for a pulse shifting arrangement to obtain pulses of a different ratio than that obtained from the dial or varying machine. Allows over-all pulsing test of polar duplex signaling circuits. Loop pulses, simplex pulses, or equivalent polar duplex dial leg pulses may be obtained from the test set. The test set’s equipment is housed in a sturdy metal case provided with a lock-on cover and a carrying handle. Dimensions: width, 143% inches; height, 815 inches; depth. 1315% inches. Weight, 25 pounds. Order No. Description Ea H-882794-1 Toll Pulse Repeating Test Set............... $695.00 REFERENCE: Technical Bulletin 108-713. Prices are subject to change without notice. R-9 CENTRAL OFFICE TEST EQUIPMENT AUTOMATIC ELECTRIC Re-Ring Relay Test Sets inches deep. Type 25 Signaling Test Sets The Type 25 Signaling Test Set provides continuous on- hook, off-hook or dial controlled DC pulses on an ‘‘M”’ lead to a line signaling circuit or on an ““E” lead to the connected drop equipment. The unit is housed in a sloping panel cabinet with a cover. The panel contains controls and meters necessary for the various functions of the set. Jacks are provided for the con- nection of power and signaling leads and external meters. This test set features an electronic interrupter which con- sists of two multi-vibrators (MV). One MY controls the pulse repetition of the other. which determines the relative operate and release time of a mercury contact relay, Two panel switches control the pulsing speed and the per cent break of the internally generated pulses. Indication of pulsing speed and per cent break time are provided by two meters. A single or a train of timed pulses of any number up to 10 may be produced under the control of an accurately adjusted dial. The test set also measures the per cent break of any externally generated pulses, including those passed through a single frequency unit under test. “FE” and ‘'M” lead supervision is provided by means of lamps. Dimensions: height, 8's inches; width, 143 inches; depth, 1313,, inches. Price Order No. Description Each H-883355-1 Type 25 Signaling Test Set......... $705.00 REFERENCE: Technical Bulletin 108-721. The Timing Test Set is a testing device to provide a means of testing the release times of the re-ring relay used in manual intertoll trunk circuits. The test set consists of a specially designed dial, two relays, a toggle switch, and two 2-con- ductor cords with alligator clips at the test ends. The cords are fastened to the underside of the cover, brought through two holes in the lower portion of the rear of the test set, and secured by two clamps at the top portion of the rear of the test set. The test set is contained in a metal box measuring 4 inches wide, 35% inches high and 4 Price Order No. Description Each H-881933-1 Re-Ring Relay Test Set............ $57.00 Type 24 Single Frequency Test Sets The Type 24 Single Frequency Test Set serves as a junc- tion unit for the application of a series of tests to single fre- quency signaling units in conjunction with the Type 25 Test Set and the Transmission Measuring Test Set. These tests are for adjustment, checking, and trouble shooting. The test set can be used on either 2400- or 2600-cycle signaling units. The test set can be used with +4 and --13 dbm, +7 and — 16 dbm, or +4 and —4 dbm transmission levels. The unit is housed in a portable, sloping panel cabinet with cover. The panel contains all necessary controls and indi- cators used in setting up the various test functions. This test set provides means for connecting 2400 and 2600 cycles through the relay keyer to the signaling unit under test. The signals can then be adjusted and measured. The test unit provides a means for connecting a fixed level 1000-cycle tone to the signaling unit under test. Also, pro- visions are made for mixing the 1000-cycle test tone with the 2400 or 2600-cycle tones. It provides means for making pulsing tests and/or for con- trolling adjusting relay M of the signaling unit. Dimensions: height, 814 inches; width, 143% inches; depth, 134% inches. . Price Order No. Description Each H-883354-1 Type 24 Single Frequency Test Set.. $600.00 R-10 Prices are subject to change without notice. AUTOMATIC ELECTRIC CENTRAL OFFICE TEST EQUIPMENT Non-Synchronous Reverse Battery Test Line Equipment The non-synchronous reverse battery test line equipment is arranged to provide distinctive tone and reversal flashes to identify correct terminal. It is used for rapid functional test- ing of connectors. It is also used for the application of mar- ginal tests to connectors. Starts to function after two complete ringing cycles. Provides the following supervisory signals after two rings have been received: off-hook--1!4 second; on-hook—!% sec- ond; off-hook—1!% second; 120 IPM—3 flashes; on-hook—2 seconds; off-hook—5!3 seconds. (The 2 seconds on-hook and 515 se