Product specifications

UT-4500-A Series Upconverters Revision 0
Rear Panel Connectors MN-UT4500A
3–7
3.2.2.1 J3 HSB (High Speed Bus) Connector (DB-25F)
The J3 HSB connector is a Type “D” 25-pin female (DB-25F)
connector is provided on all switch modules. The mating
connector is a DB-25M connector. The pinout specifications are
provided in Table 3-7.
Note: This connection does not em
ploy a “straight-through” cable assembly. Contact Comtech
EF Data for detailed wiring drawings when cabling between converters.
Table 3-7. J3 HSB Interface Connector Pinout
Pin # Description
1 Cntl_12
2 Cntl_10
3
Cntl_8
4 Cntl_6
5
Cntl_4
6 Cntl_2
7 Cntl_In
8 +14V Out
9 +14V In
10
Aux_3
11 Aux_1
12
-Rx/Tx
13 GND
14 Cntl_11
15
Cntl_9
16 Cntl_7
17
Cntl_5
18 Cntl_3
19 Cntl_1
20
+14V Out
21 +14V In
22
GND
23 Aux_2
24 GND
25 +Rx/Tx