1.4. Administrative Storage
For procedures, forms and records, and inspections
This maintenance manual describes Converter,
r e q u i r e d during administrative storage of this
Telephone Signal CV-1919/G (hereinafter referred to
equipment, refer to TM 740-90-1.
as the Converter) and covers its operation, theory of
operation, and organizational maintenance. The
1.5. Destruction of Army Materiel
references to the " a u t o m a t i c switching center"
Demolition and destruction of electronic equipment
within this manual apply to one switching center in
will be under the direction of the commander and in
particular, t h e A N / T T C - 2 5 . R e f e r e n c e s t o a
accordance with TM 750-244-2.
"manual switchboard" apply to both the SB-22
( )/PT and the SB-86 ( )/P. By this means,
The Converter is a three-channel transistorized,
technically accurate examples rather than theoretical
ruggedized, telephone signal converter designed for
applications are provided for the user of this manual.
t h e Seventh Army Tactical Switching System
1.1. Indexes of Publications
(SATSS). The Converter is designed for rugged field
a. Refer to the latest issue of DA Pam 310-4 to
s e r v i c e and is contained in a shock resistant
determine whether there are new editions, changes,
waterproof case, constructed to prevent damage
or additional publications pertaining to the
from dropping or improper handling. The Converter
is a self-contained electronic unit which utilizes four
b. Refer to the latest issue of DA Pam 310-7 to
D-size battery cells (mounted internally) for power.
determine whether there are modification work
A carrying strap is provided as an integral part of
orders (MWO's) pertaining to the system.
the Converter for easy transportability in the field.
1.2. Forms and Records
The Converter weighs approximately 27 pounds and
a. Reports of Maintenance and Unsatisfactory
can be stack mounted with Manual Switchboard SB-
22( )/PT and/or Manual Switchboard SB-86( )/P.
reports which are to be used by maintenance per-
The AC signaling circuitry provides comparability
with the AN/TTC-25, and AN/TTC-37, and the SB-
sonnel at all maintenance levels are listed in and
prescribed by TM 38-750.
22( )/PT, or the SB-86( )/P. The Converter is
b. Report o f P a c k a g i n g a n d H a n d l i n g
designed to operate with the following equipments:
Deficiencies. F i l l o u t a n d f o r w a r d D D F o r m 6
a. Central Office, Telephone, Electronic AN/TT-
(Packaging Improvement Report as prescribed in
C-25 and AN/TTC-37
b. Cable, Telephone WM-13( )/U
c. Central Office, Telephone, Manual AN/TTC-
13/MCO P4030.29A, and DSAR 4145.8.
c. Discrepancy in Shipment Report ( D I S R E P )
( S F 361). Fill out and forward Discrepancy in
e. Switchboard, Telephone, Manual SB-22( )/PT
Shipment Report (DISREP) (SF 361) as prescribed
f. Telephone Set TA-341/TT
g . Switchboard, Manual SB-86()/PT
18/MCO P4610.19B, and DSAR 4500.15.
h. Cable, Telephone WF-16/U
1.3. Reporting of Errors
i. Switchboard, Telephone, Cordless Manual SB -
Report of errors, omissions, and recommendations
for improving this publication is authorized and
translate telephone signals between the automatic
encouraged. Reports should be submitted on DA
s w i t c h i n g system and manual two-wire switch-
Form 2028 (Recommended Changes to Publications
boards. The Converter is normally located at the
and Blank Forms) direct to Commander, US Army
m a n u a l two-wire switchboard and is normally
Electronics Command, ATTN: DRSEL-MA-Q Fort
connected to any truck selected for Converter ter-
Monmouth, NJ 07703.
mination at the AN/TTC-25 and/or AN/TTC-37