London Electronics ASR-GPS, Connection Details And General Information

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10
Connections
WARNING:
Do not open the enclosure if moisture or dirt could contaminate the electronics. Only
open in clean, dry conditions.
Remove the 4 outer corner screws, so that you can lift the grey lid, to expose the electronic
assembly.
Feed your cable through the cable gland and wire to the terminal block as shown below.
Use good quality data cable with protective outer plastic sheath.
CAT5 cable is ideal.
Use one twisted pair for the Data A+ and Data B- link
Use a pair of twisted wires together for Power In + (Reduces voltage drop)
Use a pair of twisted wires together for Power In - (Reduces voltage drop)
See below ...
Some typical connections to London Electronics remote displays (refer to their manuals also):-
ASR-GPS INT-S panel mounting display S17XX large display
RS485 A+ Terminal 2 Green Data A (Term 3)
RS485 B - Terminal 3 Blue Data B (Term 4)
Common Terminal 1 Yellow Comm. (Term 2)
(Set rear switches for RS422/485) (Set for RS422/485)
Green/White RS485 B-
White/Green RS485 A+
Blue/White & White/Blue Common
Brown/White & White/Brown Power in -
Screen
Orange/White & White/Orange
Power in +