VAR4 – Installation Guide
Issue: 02 complete, approved
Page 6 of 20
2 Installation
Equipment and Tool Requirements
•
The VAR4 Router.
•
Cabling as specified in “External Cabling Requirements” (page 6) to suit your system design.
•
A small flat-bladed screwdriver.
•
A pair of wire cutters/strippers.
•
A soldering iron.
•
A 19-inch standard rack fitted with supporting rails and wired with DC power supply, signal, and control
wiring, as required by your specific system design.
External Cabling Requirements
Signals Cable
Description
Termination Suggested
Type
DC supply
1 x 2-core cable
2-way pluggable Wago cage
clamp terminal (male)
Suitably rated screened
2-core cable
Mic/Line input
Twisted pairs, individually
screened
9-way standard D connector
(male)
Suitably rated cable with
required number of pairs
individually screened
Unbalanced audio
input
1 x 2-core cable
Phono plug (Left&Right)
Suitably rated 2-core cable
A/B audio outputs
Twisted pairs, individually
screened
15-way standard D connector
(female)
Suitably rated cable with
required number of pairs
individually screened
RS232
Serial data cable
9-way standard D connector
(female)
As required to connect to
the external device being
used.
RS485
Twisted pair, overall
screened
9-way standard D connector
(female)
Suitably rated foil screened
cable (1 pair)
Audio CAN
Twisted pairs, overall
screened
9-way standard D connector
(female)
Suitably rated foil screened
cable (2 pairs)
Control ports
Overall screened cable with
required number of cores
25-way standard D connector
(male)
Suitably rated overall
screened cable with
required number of cores
!
!
1) Fire rated equivalent cables such as MICC or Pirelli FP200 should be used for safety critical
applications.
2) For EMC compliance:
•
Screened cables must be used where specified.
•
All screen tails must be <3 cm.
Refer to BS7671:2008 (Requirements for Electrical Installations) or other appropriate local standards for
guidelines on maximum potential cable lengths given the actual installation parameters.
