Comtech EF Data XSAT-7080 - Manual (Page 62)

XSAT7080 X-Band Transceiver Revision 0
Redundant Systems MN/XSAT7080.IOM
5-6
5.2.1.5 M&C I
NTERFACE
, J5
The J5 interface connector (19-pin) provides the communications and control signals between the
RSU-5060 and the customer M&C system.
Table 5-7. M&C Signal Description (Connector J5)
Pin Signal Name Type Description
A RS485 RX+ Pass-thru RS-485 Rx+, From M&C to XSAT A&B
B RS485 RX- Pass-thru RS-485 Rx-, From M&C to XSAT A&B
C RS485 TX+ Pass-thru RS-485 Tx+, To M&C from XSAT A&B
D RS485 TX- Pass-thru RS-485 Tx-, To M&C from XSAT A&B
E B ONLINE CLOSED Output Shorted to pin K = XSAT B Online
F n.c.
G n.c.
H n.c.
J n.c.
K IND/FLT COMMON Input
L A FAULT OPEN Output Shorted to pin K = XSAT A Faulted
M B FAULT OPEN Output Shorted to pin K = XSAT B Faulted
N n.c.
P RED AUTO/MAN Input Ground = Manual, Open = Auto
R n.c.
S A ONLINE CLOSED Output Shorted to pin K = XSAT A Online
T GROUND Passive
U GROUND Passive
V SWITCH CMD Input Momentary short to GND, otherwise OPEN
5.2.1.6 T
X
IF I
NTERFACES
, J6, J7,
AND
J8
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.