Comtech EF Data CST-5000 - Manual (Page 53)

CST-5000 C-Band Satellite Terminal Single Thread System Installation
Rev. 9 2–25
Table 2-3. RFT Remote Control Connector, J6
Pin # Name Description
EIA-232 EIA-485
A GND -RX/TX RX/TX Data
B -RX/TX RX/TX Data
C +RX/TX RX/TX Data
D CTS +RX/TX Clear to Send (see Note 1)
E RD/RX Receive Data
F RTS Ready to Send (see Note 1 )
G TD/TX Transmit Data
H DSR Data Set Ready
J GND Ground
K LNA_PWR Output, 10V for powering LNA (see Note 2)
L EXT_PWR Output voltage, 11V, to power RSU-503 and KP-10
M EXT TWT FLT Input, logic 0 or 5V: 5V = FLT, 0V = normal (see Note 3)
N EXT IN_2 Input, logic 0 or 5V, spare (see Note 3)
P SPARE N/C
R GND Ground
S SPARE N/C
T ALOG TST Analog test voltage output
U UL_NC Uplink fault relay, connects to uplink COM with fault
V UL_COM Uplink fault relay, COMMON
W UL_NO Uplink fault relay, opens with fault
X DL_NC Downlink fault relay, connects to DL_COM with fault
Y DL_COM Downlink fault relay, COMMON
Z DL_NO Downlink fault relay, opens with fault
a LNA PWR RTN Return for LNA Power (see Note 2)
b SPARE
c SPARE
Notes:
1. In EIA-232 mode, CTS is tied to RTS.
2. LNA can be powered from these pins instead of through the RF cable.
3. 5V is a floating level.