Wires Characteristics; Power Supply Wire; Network Wire; Readers Wires - Honeywell Tema-Voyager Multi VMC Series Installation Manual

Wires Characteristics

Use this chapter to understand the types of wire you need to use for
your plant.

Power supply wire

Multi device can be powered either with a 10V-30V DC third party
power supply, with PoE or with PoE+.
To determine the correct size for power cables need to be used for
third party power supply, refer to the below table (The following table
lists examples of wire gauge and distance for a 12V):
Warning: The above table shows the values for a single Multi device;
if more than one Multi needs to be connected to the same line, divide
the length by the number of the devices.

Network wire

For POE+ and POE: Cat5 or Cat6 Ethernet cable has to be used.

Readers wires

RS485 Data Cables (for OSDP reader connection)

Data cables used with RS485 must be twisted-pair and with 120 ohm
impedance.
Refer to Table 2 for the size of data cables to be used for this
connection with cable with AWG from 24 to 16 not shielded.
Communication
speed (bit/sec)
Refer to Table 2 for sizing data cables to be used for RS485
connection with cable with AWG from 24 to 16 shielded.
Type of cable
AWG mm2
16 1.3
18 0.9
20 0.6
22 0.35
Table 1 - Length of Power Supply cables [m]
Length in meters in relation to the cable capacity
50nF/Km
9600 1000
19200
38400
Table 2 - Length/Capacity of RS485 Data Cables not shielded (m)
Length (m) at different currents
600 mA
Ohm/Km
14 119
21 79
34 49
52 32
100nF/Km
500
500 250
240 120
1200 mA 2400 mA
60 30
40 20
25 12
16 8
200nF/Km 500nF/Km
250 100
125 50
60 24
15