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FM 11-23
PANEL
I. AN/TCC-62
EQUIPMENT NOT
SHOWN.
( XMSN SUBCENTERS 2 ISSUED INSTEAD F12-
OP AN/TRC- I[. FM 11-23-11
Figure 5-4. Type equipment configuration at transmission
center.
b. Troposcatter Radio. While tropo equipment a few circuits, field wire or field cable may be
is used primarily to provide command links, addi- used to connect the units or installations into
tional equipment is provided to establish over- long lines multichannel radio system.
jump links. The multichannel radio long lines facilities
provide a rerouting capability between e. Radio Wire Integration Facilities. Another
transmission centers. Should a transmission cen- means of providing user access into the area comter
become inoperative, overjump tropo links will munications systems is through the use of radio
augment the reroute capability.
wire integration (RWI) facilities. RWI facilities
are provided all large, medium, and small headc.
Multichannel Radio Access Links. Multi- quarters and area communications centers. Units
channel radio access links are required to connect having vehicular radio equipment can employ
headquarters, units, and installations into the RWI to gain access to the area communications
long lines multichannel radio system. These ac- system.
cess links may consist of only a single hop or
they may consist of multiple hops provided by f. Switching and Patching Facilities. Switchmultichannel
radio repeaters.
ing and patching facilities within the area communications
system are provided at transmission
d. Landline Carrier Access Systems. In addi- centers and trunk switching centrals. Communition
to multichannel radio access links, landline cations centers also have a trunk switching capacarrier
(multiplex) access systems will be re- bility. Each transmission center and switching
quired (fig. 5-4). Landline carrier access systems central is provided patching panels capable of
consist of coaxial cable with associated repeater four- or two-wire operations. The facilities
and carrier equipments. These systems may con- within the patching panels include equipment for
nect the headquarters, units, and installations the testing of long fines and long local cable, wire
with transmission centers, or with transmission and radio relay circuits.
subcenters which have a channel drop-and-insert
capability. When units or installations are located g. Area Communications Center Facilities. Lonear
these transmission centers or transmission cated along the LOC's are many small units and
subcenters and there requirements consist of only installations which require communications serv-
5-6