Aviat Networks CTR 8540, Установка оборудования, Страница: 9 / 20

CTR INSTALLATION GUIDE
Function/Requirement Priority Details
D.C. Supply Compliance,
Loading and Protection
The dc power supply must be UL or IEC compliant for a SELV output
(60 Vdc maximum).
Check to ensure that connection of a CTR system to a new or existing
dc supply does not overload the supply, circuit protection devices
and wiring.
CTR and optional PWR module must each be supported from a
dedicated circuit breaker located on their rack power distribution
panel. The circuit breaker(s) should have a rating of 20A.
The circuit breaker(s) must be used as the CTR power
connect/disconnect devices - do not use the front panel connectors
as connect/disconnect devices.
Cable routing CTR Cat5, tributary, auxiliary and NMS cables are not to be routed
with any AC mains power lines. They are also to be kept away from
any power lines which cross them.
CAUTION: There must be a minimum of 50 mm (2”) of side spacing
from the CTR to any rack panels, cable bundles or similar to ensure
proper ventilation.
Installation Procedure
This procedure is for rack-mounting CTR 8540.
1. Fit the rack mounting ears to the chassis with the grounding stud to left or
right side for the most direct ground wire path to the rack ground bar.
2. Locate the CTR in the equipment rack and secure it using four No.12 Phillips
dome-head screws from the CTR installation kit.
3. Ground the CTR from the grounding stud to the rack/frame ground bar
using a length of 4 mm2 (AWG 12) green PVC insulated stranded copper
wire with a suitably sized ground lug at the ground bar end (supplied by the
installer). The grounding stud accommodates ground cables up to 16 mm
2
(AWG 6). The stud also provides jack plug connection for a wrist strap.
4. If the equipment rack/frame requires grounding, use 16 mm2 (AWG 6) wire
from its ground bar to the station ground.
Grounding Safety
:
o
Do not assume an existing rack or mounting frame is correctly grounded.
Always check the integrity of the ground connections, which must include a
check through to the master ground for the station. The master ground bar
should be located at the point of cable entry to the equipment building.
Ground wires must provide a direct, low impedance path to the master
ground bar.
o
Do not connect other equipment to the same grounding cable as the CTR.
Each item of equipment in a rack must be separately grounded to the rack
ground bar.
o
The CTR must be located in the same immediate area (adjacent
racks/cabinets) as all other equipment with a (ground) connection to a
common DC supply source.
260-668240-001 DECEMBER 2014 5