Appendix D - Wieex2; Table 23 - Wieex2; Table 24 - Wieex2 Power Requirements; Table 25 - Wieex2 Cables And Distances - Keyscan CA250B Technical Instructions

Appendix D – WIEEX2
Appendix D reviews general information, installation guidelines, and connection diagrams for Keyscan RS485
Wiegand extenders (WIEEX2). Wiegand extenders are used on doors and readers that exceed the 500 feet
maximum distance from the ACU. When installing the WIEEX2 extenders please check the version and observe
the corresponding wiring diagram. Each Wiegand extender – WIEEX2 – includes 1 transmitter and 1 receiver.
The following additional components may be required to complete the installation:
 12VDC 1 Amp power supply with battery backup
 mounting interface enclosure
Important
Do not mix WIEEX2 (firmware 6.00 or higher) receivers and transmitters with previous generation or
WIEEX (firmware 5.03 or lower) receivers and transmitters.
WIEEX2 Functions
The following table outlines the functions and capabilities of WIEEX2 extenders.
WIEEX2
WIEEX2 – (firmware 6.00 or higher)
Unit
WIEEX2 Transmitter (TX)
WIEEX2 Receiver (RX)
OCB-8
Unit Connections
WIEEX2 transmitter (TX) to reader
WIEEX2 transmitter (TX) to receiver (Rx)
WIEEX2 receiver (RX) to ACU
Keyscan Inc. – Technical Guide (PC109x - 04.15)
Table 23 – WIEEX2
Functions/Capabilities
- 26 bits to 80 bits
- multi-baud rates 9,600 & 19,200
- supports Present3
- PIN keypad transmission
- 4 & 8 bit burst
Table 24 – WIEEX2 Power Requirements
Power Notes
12 VDC, 50 mA
12 VDC, 50 mA
12 VDC, 230 mA Optional – An OCB8 is required when not switching a 12VDC door lock
or gate operator. See Figure 86 – WIEEX2 to OCB-8 Cable Connection
on page 124.
Table 25 – WIEEX2 Cables and Distances
Maximum Distance
500 feet (152.4 m)
4000 feet (1219.2 m)
500 feet (152.4 m)
Cable
Refer to Table 1 – Cable Requirements - Readers
CAT 5 - 1 twisted pair (communication)
1 pair 18 AWG power if no local independent power
supply
120