Figure 1 - Grounding Access Control Units And Cables With Cims - Keyscan CA250 Series Technical Manual

Figure 1 - Grounding Access Control Units and Cables with CIMs

Note
Connect ground lug
to single cold water
pipe ground point
Ground
Lug
Earth GND
on DPS15
* Insulate shield with
PVC tubing such as
Alpha (p/n PVC10516
16 AWG) or
comparable insulator.
RS-232**
40-2322
Data Cable
KI-00470E-07-12
Keyscan Inc. – Technical Guide (PC109x - 07.15)
Reader
KEYSCAN
Shield
Control Board
Green
Black
Red
CIM 0
RS232
Tape
back
shield
Tape
back
shield
** RS-232 connections at
CIM 0 do not apply when
using a NETCOM2P/6P.
Tape
back
shields
Common Ground
Wire
Shield
ACU 1
Earth
GND
on
DPS15
EGND
Common Ground Wire
Shield
KEYSCAN
Earth
GND
on
DPS15
KEYSCAN
Wiegand
Reader
Signal
ACU 2
Control Board
EGND
CIM
CAT 5
ACU 3
Control Board
EGND
CIM
14