Comtech EF Data XSAT-7080 Series Installation And Operation Manual page 60

XSAT7080 X-Band Transceiver
Redundant Systems
5.2.1.5 M&C I
NTERFACE
The J5 interface connector (19-pin) provides the communications and control signals between the
RSU-5060 and the customer M&C system.
Pin
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
S
T
U
V
5.2.1.6 T IF I
X NTERFACES
The Tx IF input signal is fed from the customer's equipment to the RSU-5060 at connector J6.
The RSU-5060 contains a power splitter which feeds the IF input signal to both XSAT A and
XSAT B via the J7 and J8 connectors. The IF power at J7 and J8 will nominally be 3dBm less
than the IF input power at J6.
If the RSU 5060 contains the IF transfer switch option, the power splitter is replaced with an IF
transfer switch. This allows the customer to access the offline transceiver.
, J5
Table 5-7. M&C Signal Description (Connector J5)
Signal Name Type
RS485 RX+ Pass-thru
RS485 RX- Pass-thru
RS485 TX+ Pass-thru
RS485 TX- Pass-thru
B ONLINE CLOSED Output
n.c.
n.c.
n.c.
n.c.
IND/FLT COMMON Input
A FAULT OPEN Output
B FAULT OPEN Output
n.c.
RED AUTO/MAN Input
n.c.
A ONLINE CLOSED Output
GROUND Passive
GROUND Passive
SWITCH CMD Input
, J6, J7,
Description
RS-485 Rx+, From M&C to XSAT A&B
RS-485 Rx-, From M&C to XSAT A&B
RS-485 Tx+, To M&C from XSAT A&B
RS-485 Tx-, To M&C from XSAT A&B
Shorted to pin K = XSAT B Online
Shorted to pin K = XSAT A Faulted
Shorted to pin K = XSAT B Faulted
Ground = Manual, Open = Auto
Shorted to pin K = XSAT A Online
Momentary short to GND, otherwise OPEN
J8
AND
5-6
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MN/XSAT7080.IOM