Standard Comms Rooms Specification
Room
Configuration
General
To be defined in the project brief but should
meet requirements as per layout configurations
below
Electrical
Distribution
Boards
For new refurbishment projects requiring new
Comms rooms, a dedicated distribution board
(see separate DB spec) fed from a main load
panel. DB should be located outside of the
comms rooms.
Each distribution board must have dedicated
circuits for the following:
• Circuit to each rack;
• Circuit for small power;
• Circuit for lighting;
• Circuit for ventilation
Each circuit to be individually protected to avoid
a problem of one affecting another
Small
Power
Minimum 1 double socket outlet per
cabinet, equally spaced around the
room.
• Each cabinet is to be hard wired into
individually switched fused spurs.
In comms rooms where there are 3 or more
cabinets, 1 x 16amp commando socket is required
– this is project specific and must be approved by
CUL ISIO Dept.
Lighting
Lighting must be off centre to ensure even
illumination around cabinets.
• Lux level must reach a minimum of
400 lux to 1m on horizontal plane.
Containment
Trays or baskets will be project specific.
Cable entry from above into the comms room
is preferred.
Fire Detection
CUL has an L1 system, refer to separate Fire
Alarm specification.
General
Temperatures within comms rooms should
not exceed 24oC, 24/7, therefore the design
calculations should establish whether
additional cooling is required.
•
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Mechanical
Cooling
Cooling is required and must meet N+1;
• wall mounted split units should be
installed;
• where possible system should connect
into existing chilled water system;
Drip and leak detection should be Incorporated
into the design.
Flooring
Flooring should be anti-static vinyl, colour is
project dependent.
Walls
Ceilings
Fabric
•
See separate paint specification.
Should be exposed soffit, see separate paint
specification for finishes.
Security
Dedicated comms room to be provided,
standard ISIO core should be used, where
this does not apply CUL to advise and ISO
to approve.
Data point
allowance
[This information should also be specified
elsewhere for project designers.]
The following data points should be allowed for:
• Individual offices – 4 data points per
person (3 x data, 1 x telephone)
Open Plan offices – 3 data points per person
(2 x data, 1 x telephone)
Cabinet Sizes
Preferred standard for cabinets:
42U full size cabinet:
• Can accommodate approximately 360
data points – approximately 90 desks.
NB. These figures do not include wireless
demand, door controllers, cctv, etc…, this is
project specific and should be confirmed with
ISIO. In situations where full- height racks cannot
be used, ISIO should be consulted regarding an
alternative smaller rack.
Alternatives to be agreed with ISO:
Half-height cabinet:
• Can accommodate approximately 80
data points – approximately 25 desks.
15U Wall mounted cabinets
• Can accommodate no more than 72 data
points.
• Can accommodate no more than 2
network switches
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Switches
The Project Manager should allow a budget for
switches within the project development costs.
One switch accommodates 40 data points
(Approximate cost £4.5k per switch, excl VAT).
Number required can be confirmed by ISIO
New buildings will also require 2 building
distributions switches, a budgetary cost of
£15k+VAT should be set aside for this.
Adding comms rooms to existing buildings need a
survey to ensure that enough switch ports are
available at the Building Distribution switches, if
no spare capacity an extra cost of up to
£15k+VAT will need to be added to the budget.
Technical
Information
Cabling
Cabinet rooms should be sited approximately for
the areas whose data points they feed, the
length of cable run must be no more than 80m to
a data point.
Cabling must comply with Cat5e standards.
There should be a convenient route to run fibre
back to the building distribution location. 8 core
OM3 multi-mode fibre for 1-2 cabinets, 16 core
MO3 multi-mode fibre for 3-4 cabinets, and fibre
with SC termination.
In the case of new buildings the project must
take into account the requirement for a Network
and Telecoms link back to the main building, this
will be either achieved by using Dark Fibre or a
Managed WAN Service provided by external
companies, quotes for these works must be
obtained by Information Services.
UPS
requirements
A UPS must be provided in each cabinet:
-
-
-
Applicable SKA
Good Practice
Measure
Wall mounted cabinets should only have a
maximum of 2 switches and will require an
APC Smart-UPS 750VA:SMT750RMI2U,
budgetary cost £450+VAT
Floor standing cabinet with up to 6 switches,
will require an APC Smart-UPS
1000VA:SMT1000RMI2U, budgetary cost
£500+VAT
Floor standing cabinet with up to 8 switches,
will require an APC Smart-UPS
1500VA:SMT1500RMI2U, budgetary cost
£600+VAT
E22 IT and Comms Room Energy
Consumption -Dedicated IT and communication
rooms have a calculated DCIE (data centre
infrastructure efficiency) of 70% or greater.
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Important note:
This standard sets out the basic functional requirements for a typical new or refurbished
teaching room. The actual work required for a particular project will be determined in a
separate SCOPE OF WORKS DOCUMENT - some elements may not be present or require
replacement.
The racks for comms equipment should not be used for any other type of equipment,
such as servers.
Please note any value engineering relating to Comms Room must be approved
by ISIO to ensure the integrity of the equipment is not compromised
AVERAGE ROOM BREAKDOWN:
Number of Ports Per 30 Users:
Network Port
Telephone
Wireless Port
MFD & Fax
Display Screen
60
30
1
2
1
Number of Ports Per "block" calculated at 6 users per block:
Network Port
Telephone Port
Wireless Port
MFD & Fax
Display Screen
12
6
1
2
1
per 5 blocks
Classrooms/PC Labs/Meeting room:
Pod
Wireless port
Student machine
Camera
8
30-40 seats = 1AP
AP mounted on ceiling
48-80 seats = 2AP
APs mounted on ceiling
80-120 seats = 3AP
APs mounted on ceiling
120-180 seats = 4AP
APs mounted on ceiling
180+ must liaise with
APs mounted on ceiling
Information Services
Budget per AP should be £500+VAT (extra
equipment might be required if current
infrastructure at full capacity, liaise with
Information Services to determine capacity and
also for costs)
2
1
high level
Note: Wireless Access point positioning requires a survey to be carried out by a contractor in
order to determine the correct positioning of the ceiling level data points, these surveys incur an
additional cost. Liaise with Information services prior to the start of the cabling project. If work is
carried out without the input from Information Services the ceiling level data points might have
to be moved or new points installed at extra cost.
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Room Size and Cabinet specifications:
Wall mounted cabinet should be 600mm deep, if smaller please liaise with ISO before ordering.
These can only be used with specific authorisation from Information Services
Floor standing cabinets should be 800mm wide and deep, if smaller please liaise with ISO
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before ordering.
New 2 cabinet comms
room. No new LIM
lm
Total
T
width
800mm x
....
2.8m
...
(:--
800mm
----:l
lm
l
lm
I Total length of room 2.6m
I
New 2 cabinet comms room.
New LIM installed
1.2m
lr
Total
T
width of
room
....
800mmx
2.8m
800mm
1.2m
1
1.2m
Total length of room 2.8m
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,