Keyscan EC2500 Series User Manual

Keyscan Technical Guide (PC109x - 04.12)
10
Cables
The following table outlines system cable requirements. Please be sure to review grounding guidelines for safe
system operation. Avoid running access control cables parallel with AC wires or across fluorescent light fixtures.
This can cause AC induction or transmission interference.
Table 1 – Cable Requirements
Device / Circuit Board Signal
Protocol
Maximum
Distance
Cable Type Notes
Readers to ACU
(includes HID iClass – Rev B
& Rev C)
Wiegand 500 ft
152.4 m
6 conductors shielded
22 AWG (May require 2
additional conductors
for external pre-alert
device)
Overall shielded cable
accepted. CAT5 cable not
acceptable with Wiegand signal
protocol.
Exception Readers to ACU –
PX-620, HID-5375, MR-10,
MR-20, HID-iClass (Rev A),
iClass KEYRK40 and elevator
readers
Wiegand 500 ft
152.4 m
6 conductors shielded
18 AWG
Overall shielded cable
accepted. CAT5 cable not
acceptable with Wiegand signal
protocol.
Door Strikes & Electro
Magnets to ACU
n/a 500 ft
152.4 m
1 pair 18 AWG Shielded wire not required.
Contacts & Exit Devices n/a 500 ft
152.4 m
1 pair 22 AWG Shielded wire not required.
Motion Sensors (PIR) n/a 500 ft
152.4 m
2 pairs 22 AWG Shielded wire not required
CB-485 RS-485 2000 ft
609 m
CAT 5 – 2 twisted pairs Maximum distance @ 9600 BPS
between units - as baud rates
increase, cable distances
decrease
Maximum baud rate is 57.6K
BPS
CB-485M RS-485 2000 ft
609 m
CAT 5 – 3 twisted pairs Maximum distance @ 9600 BPS
between units - as baud rates
increase, cable distances
decrease
Maximum baud rate is 19.2K
BPS
CPB-10-2 (9600 baud)
Not recommended for use
with Rev. 11 or newer
boards.
EIA/TIA-
562
2000 ft
609 m
(between
units)
4 conductors 22 AWG
shielded
Overall shielded cable
accepted. CAT 5 cable not
acceptable with EIA/TIA-562
signal protocol. Overall
maximum is 4000 ft (1219.2
m)
CPB-10-2 (19200 baud)
Not recommended for use
with Rev. 11 or newer
boards.
EIA/TIA-
562
200 ft
61 m
Maximum
between units
and overall
distance.
4 conductors 22 AWG
shielded
Overall shielded cable
accepted. CAT 5 cable not
acceptable with EIA/TIA-562
signal protocol.
ACU/PC/Modem/CB-485/
NETCOM/CPB-10-2
RS-232 100 ft
30 m
(@ 9600 BPS)
5 conductors 22 AWG
shielded
Overall shielded cable
accepted. CAT 5 cable not
acceptable with RS-232 signal
protocol.
COMMEX Extender Kit (PC
Extender)
n/a 4000 ft
1219.2 m
CAT 5 - 2 twisted pairs
communication
Shielded wire not required. Kit
includes 1 transmitter & 1
receiver.

Keyscan EC2500 Series Specifications

General

Brand	Keyscan
Model	EC2500 Series
Category	Control Unit
Language	English