Use of RT as RCU

TM 11-5820-890-10-8

4.11b. Use of RT as RCU

DESCRIPTION

The SlP/ASlP RT can be used as a Remote Control Unit (RCU),

replacing the C-11561 RCU. When used as an RCU, the SIP/ASIP RT

accommodates both Enhanced and SINCGARS Data Modes. If the

C-11561 RCU is used with the SIP radio, only the SINCGARS Data

Modes (SDM) may be used. Otherwise, operation of the SIP RT when

used as an RCU is identical to procedures used with RCU C-11561.

REMOTED RADIO

The FCTN switch of the remoted radio is set to "REM," which disables

the front panel of that RT because control is exercised from the

RCU(RT). The remoted radio defaults to CT when placed in "REM"

mode.

RCU(RT) SELECTION

The FCTN of the RCU(RT) is set to SQ ON. The "RCU" feature of the

SIP/ASIP radio is selected by pressing [RCU] on the RT keypad and

then pressing [CHG] until "RCU" appears in the display.

ORDERWIRE

By placing the RCU(RT) FCTN switch in the REM position, the RCU(RT)

operator can talk with the remoted radio operator over the non-secure

two-wire connection. This two-wire connection is also called an

"orderwire."

COMSEC

As with the C-11561 RCU, orderwire voice communications over the

two- wire connection between RCU and remoted RT are plain text, not

encrypted.

APPLICATION

The SIP/ASIP RT can be used as an RCU in all data modes, SINCGARS

(SDM) and Enhanced (EDM).

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