Comtech EF Data KST-2000A/B User Manual
Page 35
Ku-Band Satellite Transceiver
Revision 9
Installation
MN/KST2000AB.IOM
2–7
L
LNA Power Return
+15 VDC Return from LNA
M RESET
Reset (momentary low resets
system)
N GND
Ground
P
CTS
EIA-232 clear to send (tied to RTS)
R GND
Ground
S
+12V (KP10 Power)
KP10 power supply output
T
2/4 wire (see note)
EIA-485/EIA-422 operation selection
U
UL_FLT_NC
Uplink fault relay, closed = fault
V
UL_FLT_COM
Uplink fault relay common
W
UL_FLT_NO
Uplink fault relay, open = fault
X
DL_FLT_NC
Downlink fault relay, closed = fault
Y
DL_FLT_COM
Downlink fault relay common
Z
DL_FLT_NO
Downlink fault relay, open = fault
a
SUM_FLT_NO
Summary fault relay, open = fault
b
SUM_FLT_NC
Summary fault relay, closed = fault
c
SUM_FLT_COM
Summary fault relay, common
Notes:
1. These signals can be configured as EIA-485, 2-wire, half-duplex or EIA-422, 4-wire,
half-duplex.
2. In 2-wire mode, pins A and B are tied together as are pins C and D.
3. To select 2-wire operation, pin T is left open. Tie pin T to ground for EIA-422
(4-wire) operation.