Comtech EF Data RCU108 User Manual
Page 16
Installation
RCU108 1:8 Protection Switch
Page 2-6
TM066 - Rev. 1
J6 DB 9-Pin
Description
1
GND
2
SRCLK
3
No Connect
4
TX Not
5
TX
6
SRDAT
7
No Connect
8
RX Not
9
RX
The signals on pins 2 and 6 of the DB9 connector are the clock and data of the I-squared bus
which is an interface employed in the 1:8 (RCU108) protection systems only.
2.4.4 RCU108 RF and IF Interfaces
The RF and IF connectors located on the rear of the RCU108 has four sections designated ‘A’
through ‘D’. Each section allows for two converter assignments. The RF and IF connector
designations are identical from section to section. The various sections are only differentiated by
the letter designations. Refer to Figure 2-1 to locate the IF and RF connectors outlined in the
following paragraphs.
2.4.4.1 Rear Panel Section A, Converter Number 1
J2 - IF Converter
This BNC/Female connector is routed from the IF connector (J2) of the RCU108 to J2 of
primary converter number 1. The connection is made through the IF cable assembly
CA/3598 which is a supplied item.
J3 - IF In/Out
This BNC/Female connector is routed from the User IF connector of the RCU108 to the
User Interface.
J7 - RF In/Out
This SMA/Female connector is routed from the User RF connector of the RCU108 to the
User Interface.
J8 - RF Converter
This SMA/Female connector goes to the RF connector of the RCU108 to the Primary
Converter number 1 (J1). This connection is made through supplied RF cable assembly
CA/3602-1.
J12 - RF Backup IN/OUT
This SMA/Female connector goes to the RF connector of the RCU108 to the Backup
Converter (J1). This connection is made through the supplied RF cable assembly
CA/3602-B.
J13 - Converter Interconnect