XSAT7080 X-Band Transceiver
Revision 0
Redundant Systems
MN/XSAT7080.IOM
5-5
5.2.1.3 XSAT U
NIT
B I
NTERFACE
, J3
The J3 interface connector (19-pin) provides the communications and control signals as well as
the +24 VDC power signal necessary between XSAT Unit B and the RSU-5060.
Table 5-5. XSAT B Signal Description (Connector J3)
Pin Signal Name
Type
Description
A
RS485 RX+
Pass-thru RS-485 Rx+, From M&C to XSAT Unit B
B
RS485 RX-
Pass-thru RS-485 Rx-, From M&C to XSAT Unit B
C
RS485 TX+
Pass-thru RS-485 Tx+, To M&C from XSAT Unit B
D
RS485 TX-
Pass-thru RS-485 Tx-, To M&C from XSAT Unit B
E
n.c.
F
REDUND_FLT*
Output
Fault Signal to XSAT B from RSU-5060
G n.c.
H AUXCOM_RD
Output RS2332
from RSU-5060 to XSAT B
J
AUXCOM_TD
Input
RS232 from XSAT B to RSU-5060
K FAULT
COMMON
Output
L
XSAT B FLT – NO Input
Shorted to pin K = O.K. , open = Faulted
M n.c.
N
B SELECT*
Output
Ground signal to XSAT B
P POSITION
B*
Output Ground
= B Online, Open = B Offline
R
B +24V
Input
+24VDC input power
S
REDUNDANCY B* Output
Ground signal to XSAT B
T GROUND
Passive
U GROUND
Passive
V n.c.
5.2.1.4 T
X
W
AVEGUIDE
S
WITCH INTERFACE
, J4
The J4 interface connector (6-pin) provides the control and indicator signals between the Tx
Waveguide Switch and the RSU-5060
.
Table 5-6. Tx Waveguide Switch Signal Description (Connector J4)
Pin Signal Name
Type
Description
A
POS A CMD
Output
24 VDC, 350 millisecond, Command Pulse
B
CMD RETURN
Passive Grounded internal to RSU-5060
C
POS B CMD
Output
24 VDC, 350 millisecond, Command Pulse
D
POS A INDICATOR Input
Shorted to Pin E = POSITION A
E
IND COMMOM
Passive Grounded internal to RSU-5060
F
POS B INDICATOR Input
Shorted to Pin E = POSITION B
