Keyscan Technical Guide (PC109x - 04.12)
11
Device / Circuit Board Signal
Protocol
Maximum
Distance
Cable Type Notes
WIEEX2 Extender Kit
(Wiegand Protocol Extender)
n/a 4000 ft
1219.2 m
CAT 5 – 1 twisted pair
communication. 1 pair
18 AWG power to TX.
If powering transmitter locally,
18 AWG power wiring is not
required. Kit includes 1
transmitter & 1 receiver.
CWIEEX2 Extender Kit (Coax
Extender)
n/a 500 ft
152.4 m
RG59U Coax cable required. Kit
includes 1 transmitter & 1
receiver.
Grounding
Ground all access control units and shielded cables to a cold water pipe. For multiple access control units, all
shielding should be connected to a single point earth ground.
It is important to ground the shields of the readers and communication cables to a single point cold water pipe
at the access control unit. Failing to ground the shields or using incorrect cables may cause noise or
interference and result in improper card reads. Also, refer to Grounding Communication Cable Shield.
Important
It is extremely important that the chassis ground (GND) on the DPS-15 is connected to the metal
enclosure ground lug.
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