Terrasat IBUC 3, Operation Manual

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Installation and Setup
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7-9
Engineered to Endure
J1, J2 and J3
The A: side Tx Output (J1), Tx Input (J2), and B: side Tx Output (J3) connectors are
Type-N connectors.
M&C Interface J4 and J6
The M&C interface connectors are 19-pin circular connectors used to enable the
IBUCs to exchange communications and status, as well as monitor and control the
waveguide switch. Pin assignments are shown in Table 7.3 . The M&C cables used to
connect to the Tx 1+1 interface module to the IBUCs are supplies with the Tx 1+1
system.
Table 7.2
Pin Assignments for M&C Interface connectors J1, J2, and J3
Reference Designator Function
J1 TX A: OUTPUT, L-BAND, 10 MHz, FSK
J2 TX INPUT, L-BAND, 10 MHz, FSK
J3 TX B: OUTPUT, L-BAND, 10 MHz, FSK
Table 7.3
Pin Assignments for M&C Interface Connectors J4 and J6
Pin Function
A RS485(+)
B RS485(-)
C HAND-HELD TERMINAL POWER(+)
D RS232 RXD
E RS232 TXD
F HAND-HELD TERMINAL POWER(-)
G ALARM OUTPUT
H NOT USED
J NOT USED
K NOT USED
L IBUC ALARM OUTPUT Normally Open
M IBUC ALARM OUTPUT Common
N IBUC ALARM INPUT/MUTE
P IBUC ALARM OUTPUT Normally Closed
R 1+1 SWITCH COMMAND A:
S 1+1 SWITCH COMMAND B:
T 1+1 SWITCH INDICATOR A:
U 1+1 SWITCH INDICATOR B:
V 1+1 REDUNDANCY ENABLE