Keyscan EC2500 Series User Manual

Keyscan Technical Guide (PC109x - 04.12)
12
Figure 1 – Grounding Access Control Units and Cables with CB-485s
40-2322
Data Cable
Note
Connect ground lug to
single cold water pipe
ground point
Tape
back
shield
Reader
Tape
back
shield
CAT 5
Wiegand
Reader
Signal
Common
ground
wire
Tape back travel shield
CB-485
ACU 1
CB-485
CB-485
RS232
Control Board
ACU 3
Control Board
Control Board
ACU 2
Shield Shield
Shield
Chassis GND
on DPS15
GND
TD
RD
Green
Black
Red
GW
G
BW
B
GW
G
BW
B
BW
B
GW
G
BW
B
GW
G
RS-485 Terminal RS-485 Terminal
RS-485 Terminal
Note
CB-485's
support linear
topology only.
Do not connect
using star
topology.
Shield
KEYSCAN
KEYSCAN
KEYSCAN
CAT 5
Chassis
GND
on
DPS15
Chassis
GND
On
DPS15
KI-00101E-07-11

Keyscan EC2500 Series Specifications

General

Brand	Keyscan
Model	EC2500 Series
Category	Control Unit
Language	English