Comtech EF Data MBT-4000B, User'S Installation And Operation Manual, Page: 28 / 86

MBT-4000B Multi-Band Transceiver System Revision 1
External Connectors MN/MBT4000B.IOM
3–6
3.2.1.5 J4 | IF SWITCH
Use the J4 | IF SWITCH 6-pin circular connector to connect an IF switch in a 1:1
configuration to the MBT-4000B Base Module to
Table 3-5. J4 | IF SWITCH Connector Pinouts
3.2.1.6 J5 | EXT REF (External Reference)
Use the
J5 | EXT REF
Type ‘N’ female connector to connect an 5 MHz or 10MHz
External Reference Input to the MBT-4000B Base Module.
3.2.1.7 J11 | L-BAND OUT UNIT 2
Use the J11 | L-BAND OUT UNIT 2 Type ‘N’ female connector to connect the
MBT-4000B Base Module L-Band output signal output either to the modem Rx, or
the Rx IF switch or 1:2 splitter/combiner in a 1:1 configuration.
3.2.1.8 J4 | IF IN (BUC-4000 ONLY)
Use the J4 | IF IN Type ‘N’ female connector, located on the BUC-4000 Block Up
Converter Module, to connect the BUC either to the L-Band input signal from the
modem Tx, or the Tx IF switch or 1:2 splitter/combiner in a 1:1 configuration.
Pin Signal
A POS 1 IF
B GND
C POS 2 IF
D POS 1 IND IF
E GND
F POS 2 IND IF
NOTE – Mating Connector:
CEFD P/N CN/MS3116J10-6P
(Cannon MS3116J10-6P)