Comtech EF Data RCU101 - Manual (Page 14)

Installation RCU101 1:1 Protection Switch
Page 2-4 TM055 - Rev. 2.2
CA/3293 RF Cable, 1:1 Switch 2
CA/1961-003 IF Cable, 1:1 Switch 2
Routing of the cables between the two converters and the switch is depicted in Figure 2-2. Note
that the RF/IF cabling included with the switch does not include cables to other panels in the rack.
2.4 Hardware Interfaces
Hardware interfaces between the online and backup converter and the switch equipment include
the RF interface, IF interface, Switch Interface, and Equipment RS-485 interface. In addition to the
above, the operator has access to all converter equipment in the system including the switch via
the operator RS-232 interface on the converter.
2.4.1 Protection Switch Interface (Primary & Backup) Connector (J1 & J2)
The protection switch interface connector is a DB 15-pin connector that connects each converter
with the backup switch unit. This cable is not daisy-chained between converters but serves as a
direct link for each converter in the configuration whether they are the primary converter or the
backup unit. This interface finds use in both the 1:1 and 1:N configuration type switches. The
pinout of the switch is as follows:
J1 B/U Switch Interface
J1 Pin# DB 15 Nomenclature Description Controller AS/3048 J7
1 N.O Form-C contact summary fault normally open contact 1
5 N.C. Form-C contact summary fault normally closed contact 9
9 COM Form-C contact summary fault common contact 2
13 GND 10
2 +15V Or’d Diode Or’d +15 Vdc from converter 3
6 FCB1 Fault Code bit 1 11
10 FCB2 Fault Code bit 2 4
14 FCB3 Fault Code bit 3 12
3 FCB4 Fault Code bit 4 5
7 IDB1 ID Bit 1 13
11 IDB2 ID Bit 2 6
15 IDB3 ID Bit 3 14
4 IDB4 ID Bit 4 7
8 INT O Interrupt 15
12 RMT 8
The ID Bits provide information to the converter that tells the converter which slot (either primary
or backup) the converter is plugged into. The addresses are as follows: