Switch Cmd Signal; Redundancy A/B Signals; Redund_Flt Signal; Auxcom Signals - Comtech EF Data CSAT-5060 Installation And Operation Manual

CSAT-5060 50 Watt C-Band Transceiver
Redundant Systems
B.2.3 SWITCH CMD
Pin V on the J5 connector is the 'SWITCH CMD' input pin. The user can use this
signal to command the RSU-5060 to change the position of both the Tx and Rx
transfer switches. This pin should normally be left OPEN and momentarily
shorted to ground to force a switch over (minimum pulse width for this signal is
100 mS). The RSU-5060 operating mode does effect how it will respond to the
'SWITCH CMD' command.
• If the operating mode is AUTO, a momentary short to ground on Pin V
• If the operating mode is MANUAL, a momentary short to ground on Pin
B.2.4 REDUNDANCY A/B
Pin S on both J1 and J3 connectors are used to tell the CSAT's that they are in a
redundant configuration.
B.2.5 REDUND_FLT
Pin F on both J1 and J3 connectors are output signals from the RSU-5060 to the
CSAT's to provide status indication to the CSAT's regarding the operating
condition of both the RSU-5060 and the two transfer switches. This signal is
normally a one-half hertz square wave. If this signal goes away, the ONLINE
CSAT will use the AUXCOM (RS232) interface to the RSU-5060 to get more
information regarding the problem at hand. This information is available to the
user via the "RRS?" query described in section 4.
B.2.6 AUXCOM
Pins H and J on both the J1 and J3 connectors are the EIA-232 RD and EIA-232
TD signals respectively. The AUXCOM interface is used solely in conjunction
with the RSU-5060, and should not be confused with the 'Customers EIA232'
interface available on the CSAT J5 connector (pin E and F). The AUXCOM
interface is used by the ONLINE CSAT to ascertain information from the
OFFLINE CSAT as well as the RSU-5060.
SIGNAL
will cause the RSU-5060 to change the position of the Tx and Rx transfer
switches only if the currently OFFLINE unit is not faulted.
V will always cause the RSU-5060 to change the position of the Tx and
Rx transfer switches. Like the 'RED AUTO/MANUAL' signal above, the
'SWITCH CMD' also has a corresponding REMOTE COMMAND,
"RTG=". This command, defined in Appendix A, has the same effect as a
momentary short to ground on Pin V.
SIGNALS
SIGNAL
SIGNALS
B-8
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MN/CSAT506050.IOM