Specifications

15 | P a g e
Section 3: Audio Visual Cabling Installation Specification
3.1 Cable specifications
The following cables shall be considered acceptable for University audio-visual installations.
Substitute cabling shall not be accepted unless written permission with relevant data sheet is
supplied to ISTS before installation.
Type
Preferred Manufacturer
Detail
VIDEO
VGA (pre-moulded)
Extron VGA M-M MD
Pre-moulded VGA at length to suit
DVI
Extron DVID SL Pro
DVI-D Single Link
HDMI
Extron HDMI Pro
HDMI v1.3
Video over Cat6A
Category 6A Shielded Twisted Pair
CONTROL
2 core + shield
Electra EAS7201P
1 pair + shield control cable
4 core + shield
Electra EAS7202P
2 pair + shield control cable
8 core + shield
Electra EAS7204P
4 pair + shield control cable
RS232
AMX CC-232
Wired as required for device(s)
Ethernet
Category 6A Shielded Twisted Pair
AUDIO
Unbalanced Line-Level
Audio
Canare L-2B2AT
2 pair individual shield + common drain
Balanced Audio
Canare L-4E6S
Star Quad microphone install cable
Speaker - Constant
voltage
Audio Telex P20241B
Heavy duty Fig 8
Speaker - low
impedance
Audio Telex ATC8055
Pro Speaker 2 x 2.5 mm
All cabling shall be neat and secure.
Where equipment is mounted on slides, sufficient cable length shall be provided to enable the item
to be withdrawn to the limit of the slides while remaining fully operational and without stress on
cables or connectors. Typically cables terminating at the equipment racks or lecterns shall have 2m
tails provided. All runs of cable designated to be carrying digital signal (e.g. DVI, HDMI, Cat6A) must
have no more than 4 cable breaks for runs over 30m. Smaller runs may be permitted to have more
than 4 cable breaks, however this must be in consultation with ISTS.
Securing of cabling at racks shall be with Velcro or other suitable reusable fixture for the looms and
cable ties are not to be used. Cables terminating at the equipment, i.e. data projectors, speakers etc.
shall have 2m tails provided.
Any in-ceiling cabling shall be suspended above ceiling tiles on catenaries or cable tray. At least one
draw cable shall be run from the AV bench to the ceiling space for use as a draw cable and/or future
use. A minimum of 2 extra Shielded Twisted Pair Category 6A or higher Ethernet cables must be run
from the equipment rack to any ceiling mounted display equipment to allow for future expansion.