ADB Safegate CRE 10, Installation Manual

Page: 50 / 86

50 A.07.370e - Edition 2.0
Pre-installation
Table: 5.4 Wire sections and cable lengths for multiwire cables
J-Bus cables (option)
1. For a Tx+/Tx- and Rx+/Rx- connection, plan a twisted-pairs cable.
2. Provide screened (armoured) data cable according to the selected protocol:
- RS485 (2 wire communication).
- One cable for a single J-bus, two cables for a dual J-Bus.
Table: 5.5 Wire sections for J-Bus cables
Ideally, the maximum length of a J-Bus cable is 1200 m.
Ethernet cables (option)
1. Use an FTP CAT 5e patchcable to limit the electromagnetic interference.
You can use also a higher cable
standard.
5.5.7 Cables for series circuit
1. Make sure that the cables meet the specifications. See the table below.
Table: 5.6 Series circuit cable specifications
Diameter [mm] Typical
resistance at
55 °C [Ohm/m]
Power supply
tolerance [%] Maximum cable
length 48 V DC
[km] Maximum cable length
24 V DC [km]
0.5 0.1 -5 3 0.65
-10 1.7 -
0.8 0.04 -5 7.5 1.5
-10 4 -
Cable type Number of wires Diameter [mm]
JE-LiYCY (with armouring type R, B, Q or Z) 2 or 3 pairs twisted 0.5
TWAVB 4 or 6 x 0.8mm (0 V wire) 0.8
CAUTION
Do not mix J-bus A and J-bus B signals in one pair.
Type Description
Conductor Stranded, copper single-conductor with a 6 or 8.3 mm
2
cross-section.
Insulation Cross-linked polyethylene, ethylene-propylene-rubber, or buna-rubber.
Jacket Chlorosulfonated polyethylene, polyvinyl chloride, polyethylene, or heavy duty
neoprene jacketed.
Shield type Metal-tape shielding between the insulation and the jacket or between the jacket
and a non-metallic covering.