EXTENSION NODE
Function. The TRI-TAC extension nodes consist of an AN/TTC-48A switch and a single multichannel link. They service smaller units requiring access to the theater area communications system. The extension node provides automatic circuit switching, terminations for up to 41 subscribers, and has an NRI for CNR users. RAU coverage gives users with MSRTs access to the theater area communications system. See Figure 3-27.
Figure 3-27. Typical TRI-TAC extension node.
Nomenclature
- SWITCH: AN/TTC-48(1 ea)
- MULTICHANNEL LOS: AN/TRC-173 (1 ea)
- GENERATORS: AN/MJQ-18 10kW (1 ea), PU-751 5kW (1 ea)
- BIT RATE: 32 kbps/ch / 16 kbps/ch
- AN/TRC-174 FREQ RANGE: 1350 TO 1850 MHz
Interconnectivity. The SEN connects with the area node through a single UHF multichannel link to a radio terminal assemblage, AN/TRC-173. The MSE SEN switch, AN/TTC- 48A, performs circuit switching and connects to the J-1077s. Users install field wire from their telephones to the J-1077s. Users can also install telephones by using RMCs. They connect to the AN/TRC-173's group modem (GM) by cable.
Continue with Chapter 3
Table of Contents
Index
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