System 9000TS
65
SECTION 14 – END OF LINE LOAD
Communication End Of Line Resistors
Each P925TS-* Card is equipped with two off 2 way DIL switches labelled SW2 and
SW3. When selected to the on position these switches provide the required end of line
load resistor to balance the communication line. SW2 is used for the RTK internal
communication network and SW3 is used for the external communication network.
Please note:- SW2 and SW3 should only be set to the on position on the last card in
the system
1 2 3 4
SW1
OFF
ON
5
8
7
6
CARD ADDRESS SETTING
SW3
1 2
2
1
SW2
RX
TX
RX
TX
REM
LOC
OFF
ON
END OF LINE LOAD RESISTOR
SWITCH TO ON IF LAST IN CHAIN
RTK LOCAL
COMMS
REMOTE
COMMS
PG1
FACTORY
USE ONLY
1
4 8 16 32 64 128
BINARY
2
End of Line Resistor Switch Location