Axcess Network Receiver Installation Guide - Manual (Page 31)

© 2002, AXCESS Inc. 750.001.005 R0000 31
Data One Wire (white)
Data Zero Wire (green)
from Wiegand
control panel
Ground Wire (black)
9VDC +5V G D1 D0 GND 24VDC RS-232
Figure 14 Connecting to a Wiegand control panel
IMPORTANT Wire the Network Receiver to the Wiegand control panel
carefully. Wiring Ground to a Data terminal can short the Receiver. DO NOT
wire Data One and Data Zero backward – the data will be garbled .
3. Run the Data One wire from the Wiegand control panel to D1 on
the Receiver. For standard Wiegand control panels, the Data One
wire is white.
4. Run the Data Zero wire from the Wiegand control panel to D0 on
the Receiver. For standard Wiegand control panels, the Data Zero
wire is green.
5. Ensure the Wiegand control panel is wired correctly.
6. Add the Tag IDs and facility codes to the panel’s database
according to the panel manufacturer’s instructions.
Wiegand Output
The following shows the SIA standard 26-bit data format that
is output from the Receiver:
E S S S S S S S S H H H H H H H H L L L L L L L L O
E = even parity bit, calculated over bits 2 – 13.
S = site code. Bit 2 is the most significant bit. By default, the
Tag’s site code is 025. Tags can be ordered from
AXCESS Inc. with other site codes.
H = high byte of the Tag ID number. Bit 10 is the most
significant bit.
L = low byte of the Tag ID number. Bit 18 is the most
significant bit.
O = odd parity bit, calculated over bits 14 – 25.