User's Manual

3300-Watt VHF Low Band Transmitter Chapter 2, System Description,
Maintenance & Remote Control Connections
335B, Rev. 0 2-10
Table 2-10. 335B Remote Interface Connections to (A12) the A/V Input
and Remote Interface Assembly
FUNCTION
REMOTE JACK/PIN
NUMBER
INTERFACE TYPE
Transmitter Enable Interlock J9-21
Transmitter Enable Interlock Rtn. J9-22
J9-21 and J9-22 must be
connected together for
normal operation. The
(1176-1038) jumper jack or
an external interlock can be
used.
Remote Control Commands
Transmitter Standby (Disable) J9-9 Contact closure
Transmitter Standby/Operate Rtn. J9-10
Transmitter Operate (Enable) J9-11 Contact closure
Transmitter Manual J9-15 Contact closure
Transmitter Auto/Manual Rtn. J9-16
Transmitter Auto J9-17 Contact closure
Power Level Raise (Optional) J9-27 Contact closure
Pwr Lvl Raise/Lower Rtn (Optional)
J9-28
Power Level Lower (Optional) J9-29 Contact closure
Modulator Select (Optional) J9-31 Contact closure
Modulator Select Rtn (Optional) J9-32
Remote Status Indications
Transmitter Operate (Enable) Ind. J9-12 50 mA max current sink
Operate/Standby Ind. Return J9-13
Transmitter Standby (Disable) Ind. J9-14 50 mA max current sink
Transmitter Auto Indicator J9-18 50 mA max current sink
Auto/Manual Indicator Return J9-19
Transmitter Manual Indicator J9-20 50 mA max current sink
VSWR Cutback Indicator J9-23 50 mA max current sink
VSWR Cutback Indicator Return J9-24
Video Loss (Fault) Indicator J9-25 50 mA max current sink
Video Loss (Fault) Ind. Rtn. J9-26
Receiver Fault (Optional) J9-30