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2. Installation
T T
Unpacking the Hardware
When shipped, the Hotwire 8820 GranDSLAM chassis is packed in a cardboard
shipping container. Carefully remove the chassis from its shipping container and
check for physical damage. If the chassis shows signs of shipping damage, report
this immediately to your shipping and sales representatives.
2-2
Cabling
Use only CAT3 or greater twisted-pair network connection cables for DSL
connections and interface patch cabling. Untwisted analog cables of any
length anywhere in the loop substantially contribute to crosstalk and reduced
loop reach.
If there is adequate maintenance space at the rear of the rack, mount the
chassis on the rack before installing cables. If not, install the rear-mounted
network cables on the chassis before mounting the chassis on the rack.
The following customer-provided cables and cable adapters are required with
this product:
— Telco-type 50-pin cable with end-fed (or right angle) plug connectors for
connection to the CO POTS splitter card or MDF. (See table of pinouts in
Telco 50-pin Connector Pinouts for DSL Loops and POTS Splitters
Appendix A, Pinouts , for DSL ports for each DSL slot.) You could need a
maximum of 17 cables for the rear connectors, depending on the mix of
DSL port cards installed in your chassis. See
Ring Connections
in Chapter 3, Cabling .
— 8-pin modular plug cable for connection to a CO alarm system, if required.
— 8-pin shielded CAT5 modular cable is required for connection to the DSL
10/100BaseT Ethernet ports. You will need this cable for each RADSL,
IDSL, Packet SDSL, ReachDSL/MVL, and MVL card in the GranDSLAM.
For ATM SDSL and TDM SDSL cards, refer to the appropriate card
Installation Instructions for the correct cable needed.
— 8-pin UTP (unshielded twisted pair) CAT5 modular cable may be used for
connection to management domain LAN for SNMP management system
or Telnet access. However, shielded cable is recommended.
— A suitable serial cable and DB25 and DB9 adapters are required for the
MCP card. For connection to a modem, you will need a NULL modem
adapter.
— A suitable cable is required for the ATM uplink. For example, 75-ohm coax
cable is required for DS-3, and fiber cable is required for OC-3.
CAUTION:
Use of any nontwisted pair wiring arrangements, such as jumpers, can
cause reduction in overall DSL reach performance, even over short
distances.
NOTE:
The GranDSLAM chassis weighs approximately 49 pounds empty.
March 2001
in
Installing Network Tip and
8820-A2-GN20-30
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