Wiegand Reader Cables; Input Wires; Output Cable - Honeywell Tema-Voyager Multi VMC Series Installation Manual

Wiegand reader cables

The wires used to connect Multi device with third party Wiegand
readers are those specified into the reader technical specification.

Input wires

Use a twisted pair cable for the contacts connections.
For outdoor wiring is mandatory to use shielded cables.
For internal wiring without shielded cables is recommended an
electrical environment where the cables are well separated, even at
short runs, especially to whom can be essentially subjected to
interference.
The following table lists wire gauges and distances for Inputs.
*
One-volt voltage drop is considered typical.

Output cable

Cable used for connecting output should have a MAX size of 2 mm
that it is AWG14.
16
Communication speed
(bit/sec)
9600
19200
38400
Table 3 - Length of RS485 Data Cables shielded (m)
Caution:
If the distance between the reader and the Multi
device is more that 15 m you need to change the
RS485 switch position to insert the 120 ohm
termination resistor. Refer to the Multi Device
Anatomy chapter
Cable type
AWG
14
16
18
20
22
24
26
mm2 Ohm/km
2 8.8
1.3 14
0.9 21
0.52 34
0.35 52
0.2 85
0.13 137
Table 3 Length of Input cables
Length in meters
50nF/Km
1200
900
700
Max distance (m)*
1420
893
595
368
240
147
93