Proximity Card Reader (RS-485)
AC-1100
Technical Reference Manual
For proper operation, it is best not to subject the AC-1100 proximity card reader to excessive
heat, moisture, vibration or electrical interference.
For back-to-back operation (opposite sides of a door) always maintain a minimum distance of
6” between the two card readers. A suitably grounded metal shield may be inserted between
the back-to-back readers to reduce undesirable crosstalk.
Addressing
Each device on the RS-485 scanner network must have a unique address to ensure proper
communications. The address of the AC-1100 reader may be set to any decimal number
between 0 and 15.
Adjusting the rotary switch located at the rear of the unit sets the network address. A small,
slot-head screwdriver is suitable for this purpose. The blade of the screwdriver is inserted into
the slot indicated by an arrow in the diagram below.
The switch indicates the positions 0 to 15 in hexadecimal notation. Addresses 0 to 9
correspond with decimal values. The uppercase letters A to F, where A represents 10 and F
represents 15, represent addresses 10 to 15.
The factory default setting for the AC-1100 address is 0.
AC-1100
Rotary
Address
Switch
C
4
A
2
6
E
0
8
B
3
F
7
1
9
5
D
Address selection (address 2 shown)
Copyright KeyMatrix Inc.. All rights reserved.
Revision C
[2005-11-04]
p. 9
