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Preinstallation Considerations
Consider the following before performing installation of the 8610 chassis:
H
Installation Site
Your installation site should be well ventilated, clean, and free of environmental
extremes. If you are installing the Hotwire 8610 DSLAM chassis in a central office
rack, make sure there is 2 to 3 feet of clearance at the front of the rack in which the
8610 chassis is to be installed to allow access for the installation of the chassis,
circuit cards, and cables. Also allow for proper clearance at the rear of the chassis
for cabling, if using the rear cable connectors.
H
Power
The ac power version requires a power source of 100–250 Vac @ 50–60 Hz;
maximum current draw is 3 amps @ 110 Vac.
The dc power version requires a – 48 Vdc power source (– 40.0 to –60.0 Vdc;
maximum current draw is 2 amps). The size of power source wires must be
between 14 AWG and 18 AWG, and can be either solid or stranded. However,
16 AWG stranded wire is recommended.
H
Grounding
A ground lug is located at the lower right of the cover at the rear. It accepts
14 AWG wire.
A noninsulated banana jack is located at the left front side of the unit to provide a
ground for the ESD wrist strap plug.
H
Stacking
Up to three 8610 chassis may be physically stacked safely on top of each other.
However, for stacks of more than three, start a second stack or mount in a 19- or
23-inch rack. Contact your sales representative for ordering information.
H
Cabling
Use only CAT3 or better twisted-pair network connection cables for DSL
Termination Unit connections and interface patch cabling. Untwisted analog cables
of any length anywhere in the loop substantially contribute to crosstalk and
reduced loop reach.
The following customer-provided cables and cable adapters are required with this
product:
— Plug-ended Telco 50-pin cable for connection from the Hotwire 8610 DSLAM
Line ports to the CO POTS splitter shelf or MDF, one cable per DSL card.
— 8-pin UTP (Unshielded Twisted Pair) CAT5 modular cable for connection to
the DSL 10BaseT Ethernet ports. You will need this cable for accessing the
LAN/WAN circuits of each DSL card.
— 8-pin UTP CAT5 modular cable for connection from the Hotwire 8610 DSLAM
MANAGEMENT MCP port to a 10BaseT hub connector (connected to an
SNMP management system network) for Slot 1 in the base chassis. For other
chassis in a stack, use this cable for daisy chaining the chassis together. For
M/HDSL and M/SDSL cards, refer to the appropriate card Installation
Instructions for the correct cable needed.
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