ADCP-61-813 • Issue 2 • February 2005
Page 8
© 2005, ADC Telecommunications, Inc.
Figure 9. Rear View of Redundant Switch
3. Refer to your work order, and connect the designated receiver IN/OUT cables to
connectors A and B under the PORT 1 and PORT 2 markings on the rear panel of the
switch. Carefully tie wrap the cables to the cable tie bar at the rear of the switch.
4. This step is optional and performed only if using switch monitoring software. Connect
RS-485 interface cables from the personal computer (PC) with switch monitoring software
to the RS-485 IN and OUT connectors on the rear panel of the switch. This connection can
be via a daisy chain to/from other switch panels. (See
.)
Figure 10. Daisy Chained RDS-AS Units
12217-D
SERIAL
NUMBER
FRAME
GROUND
SCREW
RS-485
IN OUT
RS-485
IN OUT
RS-485
IN OUT
REMOTE
MONITOR
UP TO EIGHT
RS-485 BUSES
UP TO 32 REDUNDANT AMP
SWITCHES IN EACH DAISY CHAIN
SYSTEM MAXIMUM IS 250
20380-A
RS-485
IN OUT
IF TOTAL CABLE LENGTH EXCEEDS 1000 FEET, TERMINATION MAY BE REQUIRED,
PER THE REQUIREMENTS OF THE RS485 CARD ADAPTER SPECIFICATION.
RDS
TERMINATION
8-POSITION
MODULAR
PLUG
1
2
100
OHM
100
OHM
3
4
5
6
7
8
RDS TERMINATION
