635-SERIES HARDWARE M ANUAL
Chapter-Page
2-79
10.9 Field Wiring Cypress Clock to 635-DSI Board
1.
Remove the 2-piece orange connectors and land wiring as indicated in the diagram.
There are 2 RS-485 Sections(ports) – each section is independent (for example you can
have doors on Section-1 and Clocks on Section-2
.
Terminal Pin-outs are silk-screened on the back of board. But the diagram below shows the DSI
component-side up
– so be aware Terminal “A” is next to the LED. Section-1 is closest to the
power input connector (wiring harness).
Figure 61 – Wiring a Cypress Clock (1201) to a 635-DSI Board:
DSI to Clocks (2-wire):
635-DSI
CLOCK
A
YELLOW
B
GREEN
Ground the shield at
one end of segment
Daisy-chain Clocks:
CLOCK
CLOCK
YELLOW
YELLOW
GREEN
GREEN
Ground the shield at
one end of segment
CYPRESS CLOCKS:
Supports up to
16 Clocks
per DSI 485 Section (Port)
UNIT NUMBERING:
Unit numbering is not done.