Comtech EF Data NetPerformer SDM-9 Series, Руководство по установке оборудования

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Unpacking
Memotec Inc. 2-3
- Capable of supporting the weight and size of the SDM-9XXX Series, unit, its
cabling and attached equipment.
• To ensure proper ventilation of the SDM-9XXX Series unit, leave 5 cm (2
inches) of unobstructed space around the unit chassis.
• Ensure that a sufficient number of shelves, supports, racks and cabinets are avail-
able to safely house all equipment.
2.1.3 Distance Requirements
• The SDM-9XXX Series unit should be no more than 2 meters (approx. 6 feet)
away from an easily accessible power supply appropriate to the type of power
supply on the unit:
- SDM-9120 UAC, SDM-9220 UAC or SDM-9230 UAC: 100-240 VAC, (50/
60 Hz)
WARNING:
:
In countries where a 2-pin non-grounded power cord must be used
for the SDM-9XXX Series UAC, ensure that the unit is independently
grounded with a wire from Ground securely attached to the ground lug on the
power supply at the rear of the unit chassis.
For the location of the ground lug, refer to
“Rear View of the SDM-9230 UAC”
on page 4-3 .
- The maximum length of user equipment connections is relative to the serial
(WAN/user) port speed:
- 6 Mbps: 8 meters (25 feet)
- 2 Mbps or less: 30 meters (100 feet)
• There should be no more than 8 meters (25 feet) between modems and WAN link
(PVCR) connections.
• Equipment that is directly connected to the voice interfaces can be placed much
farther away. Up to 2750 meters (9000 feet) of cable is permitted between each
NetPerformer analog interface and its attached equipment.
NOTE:
Distance may be an important factor for an E&M interface on the SDM UAC
unit.
If the PBX and the NetPerformer UAC unit are not near each other (in the
same room, for example) then their AC grounds may not be the same. Refer to
“E&M Grounding Considerations” on page 3-25 for a workaround.