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Installation
CA/3293
CA/1961-003
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
J7
1
N.O
5
N.C.
9
COM
13
GND
2
+15V Or'd
6
FCB1
10
FCB2
14
FCB3
3
FCB4
7
IDB1
11
IDB2
15
IDB3
4
IDB4
8
INT O
12
RMT
Page 2-4
RF Cable, 1:1 Switch
IF Cable, 1:1 Switch
Form-C contact summary fault normally open contact
Form-C contact summary fault normally closed contact 9
Form-C contact summary fault common contact
Diode Or'd +15 Vdc from converter
Fault Code bit 1
Fault Code bit 2
Fault Code bit 3
Fault Code bit 4
ID Bit 1
ID Bit 2
ID Bit 3
ID Bit 4
Interrupt
RCU101 1:1 Protection Switch
2
2
Controller AS/3048
1
2
10
3
11
4
12
5
13
6
14
7
15
8
TM055 - Rev. 2.2
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