TM 11-6625-1668-12
Section II. DESCRIPTION AND DATA
1-4.
Purpose and Use
The AN/GGM-15G(V), hereafter referred to as test set, provides complete capability for the comprehensive
analysis and generation of simulated, synchronous, data, start-stop data and telegraph signals.
1-5.
Description of Major Components
a. General. Test Set, Telegraph AN/GGM-15(V) consists of three major operating components and an
interconnecting cable. These components may be rack-mounted in a standard 19-inch rack or they may be
mounted in Case, CY-6672/GGM-15(V). When the components are mounted in CY-6672/GGM-15(V), the
entire group may be made portable by mounting them on Dolly, Test Equipment V-434/GGM-15(V). When the
components are mounted in a rack and are interconnected by Cable Assembly, Special Purpose, Electrical
Branch CX-12024/GGM-15(V), they comprise Test Set, Telegraph AN/GGM-15(V)L When the same
components are mounted in the CY-6672/GGM-15(V), interconnected by the CX-12024/GGM-15(V), and
transported on the V-4341GGM-15(V), they comprise the AN/GGM-15(V)2. Table 1-1 details the Federal stock
numbers, common names, sizes, and weights of the items which make up the AN/GGM15(V).
Table 1-1. Components
Federal stock
Nomenclature
Common name
Dimensions (inches)
Weight
Quantity
number
Height Width
Depth
(lbs)
supplied
6625-464-1702
Test Set, Telegraph AN/GGM-16(V)1 ..............
Test Set Set....................
17 1/2
19
18 1/2
107
6625-219-2525
Generator, Signal SG-860/GGM-16(V) ............
Generator ........................
5 1/4
19
18 1/2
37
1
6625435-7776
Analyzer, Signal Distortion, TS-2862/GGM
Analyzer...........................
5 1/4
19
18 1/2
29
1
15(V) .........................................................
6625-442-6135
Oscilloscope OS-206/GGM-15(V) ...................
Oscilloscope ....................
7
19
18 1/2
39
1
6625-443-5527
Cable Assembly, Special Purpose, Electrical
Interface cable .................
.......
.......
24
neg
1
Branched CX-12024/GGM-15(V). ............
(long)
6625-497-9791
Cable Assembly, Special Purpose, Electrical
Power cable.....................
96
neg
3
CX- 12105/U .............................................
(long)
6625-442-6131
Test Set, Telegraph AN/GGM-15(V)2 .............
Portable test set...............
53 3/8
32
19 5/8
159
6625-219-2525
Generator Signal SG-860/GGM-15(V) .............
Generator .......................
5 1/4
19
18 1/2
37
1
6625-435-7776
Analyzer Signal Distortion TS-28621GGM
Analyzer...........................
5 1/4
19
18 1/2
29
1
15(V). ........................................................
6625-442-6135
Oscilloscope OS-206/GGM 15(V) ...................
Oscilloscope ...................
7
19
18 1/2
39
1
6625-442-6132
Case, Test Set CY-6672/GGM-15(V) ..............
Test set case ...................
19
19 5/8
24
12
1
6625-435-7775
Dolly, Test Equipment V-4341GGM-15(V) ......
Test set dolly ..................
34 3/8
18
32
40
1
6625-443-5527
Cable Assembly, Special Purpose, Electrical
Interface cable. ................
24
Branched CX-120241GGM- 15(V). ..........
(long)
6625-435-7776
Cable Assembly, Special Purpose, Electrical
Power cable.....................
96
neg
3
CX-12105/U. .............................................
(long)
b. Generator, Signal SG-8601GGM-15(V). The SG-860/GGM-15(V), hereafter referred to as the
generator, is a completely self-contained test instrument capable of producing clear or distorted start-stop or
synchronous telegraph and data signals at speeds up to 9600 bauds.
(1) The generator provides six output forms: selected character (a single repeated character) 1:1
reversals, an 80 or 128 character test message, steady mark, steady space and externally applied data. The
single repeated character is produced in 5, 6, 7, or 8 level code, start stop or 8 bit synchornous. The test
message is programmed in assemblies 1A2A5 and 1A2A7 in 5 level Baudot code. The message contains a
maximum of 128 characters, the last 48 of which are programmed for spaces. The character counter,
assembly 1A2A8, is provided with a strap option to select either 80 or 128 character operation. An additional
message form results when the generator is used in conjunction with the analyzer to produce a 2047 bit
pseudo-random synchronous pattern (pare 3-8b(V).
NOTE
The generator is designed to also accept an 8 level 80 to 128 character ASCII message
format. This feature requires the addition of an 80 character 8 level matrix (assembly
1A2A6) and the substitution of the 48 character 5 level matrix (assembly 1A2A5 with a new
48 character 6 and 8 level matrix assembly.
1-4
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