Comtech EF Data MBT-4000 - Manual (Page 30)

MBT-4000 Multi-Band Transceiver System Revision 4
External Connectors MN/MBT4000.IOM
3–4
3.2.1.3 UNIT 1 COMM (J3)
The J3 UNIT 1 COMM connector is used for connecting the MBT-4000
Base Module Unit 1 section to the J6 COMM connector featured on both the
BUC-4000 Block Up Converter and BDC-4000 Block Down Converter
Modules via the 15-15 Power & Signal Harness (CEFD P/N
CA/WR10963-1), as shown in Figure 3-2.
Table 3-4. UNIT 1 COMM (J3) Connector Pinouts
Pin Signal
A SUM FLT
M RxD BXC
C Tx+ BXC
D GND
E +7.5V
F +7.5V
G +15V
H GND
J Rx+ BXC
K Rx- BXC
L Tx- BXC
B TxD BXC
N SPARE
P 10 MHz REF
R SPARE
NOTE – Mating Connector:
CEFD P/N CN/8LT5-15B15PN
Figure 3-2. Unit 1 Base Module to Converter Module Connection