Cabling. Lucent Technologies DMX Access Multiplexer

PDF

Dokument

Reklamë

Product Description

Cabling

............................................................................................................................................................................................................................................................

Overview

This section briefly describes cabling information, including the number of particular cables required.

Cable types

The table below lists available cables along with the required number

(if any).

Table 4-9 Cables

Cable Assembly Description

Power

DS1/E1

Quantity per Shelf

1 per shelf

1 per Function Unit housing a

28DS1 circuit pack

—

LNW6/7(as required)

2 per Function Unit housing 56DS1/

—

LNW8

DS3/EC1/TransMUX

12 conductors

DS3/EC1/TransMUX (highcapacity)

24 conductors

LNW93 and LNW94 cable kit

(comcode 848957437)

1 per Function Unit housing a

LNW16 or LNW18 circuit pack (as required)

2 per Function Unit housing a

LNW19/19B or LNW20 circuit pack (as required)

1 per LNW93 or LNW94 Test Pack

(as desired by customer)

Office Alarm

Office Alarm Mult

Miscellaneous Discrete (right angle connector)

Miscellaneous Discrete (straight connector)

LAN 10/100 BaseT (Crossover)

LAN 10/100 BaseT (Straight

Through)

1 (bottom shelf in bay frame only) 4

1 for any adjacent shelves (as required)

1 per shelf (as required), Standard

Shelf only

1 per shelf (as required), Highcapacity Shelf only

1 per shelf (as required) Standard and High-capacity Shelf

See Note

4 - 5 6

365-372-300

Issue 8.0, September 2006

Cabling

Product Description

Cable Assembly Description

LAN 100 BASE-TX

Sync Timing

PC-CIT Interface

Modem Cable Assembly

Quantity per Shelf

1 per Function Unit (as required)

1 per shelf (as required)

1 per shelf (as required), Standard and High-capacity Shelf

See Note

Table notes

1. One cable assembly supports both the -48VA and -48VB main power feeders on the DMX shelf. Cable assemblies are available in 2,4, 6, and 10 AWG cable kits including the required Storey connectors for connection a the shelf. The connectors are also available seperately for customers who choose to supply their own cable.

2.One DS1 Cable Assembly provides one input and one output cable for

28 DS1s, i.e. for one DS1 function group, e.g.: “J1 A OUT” & “J2 A

IN” used on both the standard and high capacity shelf. Two DS1 Cable

Assemblies are required for the high capacity 56DS1 LNW8, i.e. for 2 function groups, e.g.: “J1 A OUT” & “J2 A IN” and “J24 A OUT” &

“J24 A IN”. The DS1 Cable Assembly consists of two separate cables, each containing 28 pairs of 24 gauge shielded cable. On each of the 28 pairs of cable, cable 1 is for input and cable 2 is for output.

3. One DS3/EC1 Cable Assembly (12 conductors) provides one input and one output cable for 12 DS3/EC-1s (LNW16) or TransMUXs

(LNW18), i.e. for one “12DS3/EC-1 or TransMUX” function groups, e.g.: for “J1 A OUT” and “J2 A IN”.

One DS3/EC1 Cable Assembly (24 conductors) provides one input and one output cable for up to 24 signals, i.e. for the first 12 of 24 connectors used for the LNW16 or LNW18 function groups, e.g.: for “J1

A OUT” and “J2 A IN”.

Two assemblies are required for the high capacity 48DS3 (LNW19), e.g.: “J1 A OUT” & “J2 A IN” and “J24 A OUT” & “J24 A IN”.

4. One Office Alarm Cable Assembly is required for the bottom DMX shelf in a bay frame. Other DMX shelves in the bay frame do not require this assembly, but may use the Office Alarm Mult (J13) cables.

5. One Office Alarm Mult Cable Assembly is required for any adjacent

DMX shelves in a bay frame (above the lowest shelf). For example, if four DMX shelves are located in a single 7-foot bay frame, three cable assemblies are required. These cables cannot reach any further than an adjacent shelf.

6. The Crossover cable is used when connecting to a PC. The Straight

365-372-300

Issue 8.0, September 2006

4 - 5 7

Cabling

Product Description

Through cable is used when connecting with a hub.

7. This cable kit is an accesory to the LNW93 or LNW94 and is meant to aid in testing procedures. It is not critical to the use and function of these packs, but han help ease cabling in testing procedures. The kit contains the folowing cables:

(1) BNC-BNC DS3 3-foot cable

(1) BNC-LCP DS3 3-foot cable

(1) Bantam-Bantam DS1 3-foot cable

(1) RJ45 - RJ45 LAN Patch Cord

(1) DB9-DB9 connector cable for the RS232 port (6 feet)

4 - 5 8

365-372-300

Issue 8.0, September 2006

Cabling

Product Description

LNW70 faceplate cabling guidelines

The LNW63/64/70/78 can use both optical and electrical PTM transceivers. The figure below shows the connections to the electrical

PTM transceivers. The RJ45 cables that connect to the BASE-T-C1 and

FE/GbE Electrical PTM will be directed downward at a 45 o angle. In order to ensure proper cable routing, the copper cables must be above any optical cables/attenuators, etc. that may be installed.

The first four ports of the LNW70 can be used for either optical or electrical PTM transceivers. So, if there’s a plan to have electrical

PTMs in the pack at any point, the user should reserve the first four ports for electrical PTMs and install any optical PTMs in the bottom four sockets. If there is no plan to have electrical PTMs in the pack, optical PTMs may reside in any socket.

For more information on the LNW70 refer to 1000BASE-X/100BASE-

LX (LNW70) switched Ethernet interface (4-37).

For detailed information on all PTMs available, refer to Allowed PTM

Tranceivers (10-109) and the sections that follow.

Figure 4-10 LNW70 Faceplate

MA-DMX4377

365-372-300

Issue 8.0, September 2006

4 - 5 9

Cabling

Product Description

4 - 6 0

365-372-300

Issue 8.0, September 2006

5 System Planning and

Engineering

Overview

Purpose

This section summarizes basic system planning and engineering information to plan procurement and deployment of the DMX Access

Multiplexer. There are a number of considerations that should be kept in mind when planning the DMX’s role in the network. Projected customer requirements will determine initial capacity needed, as well as evolution to higher capacities. The advanced networking capabilities of the DMX offer many economic and planning benefits, and certain guidelines should be followed to maximize these benefits. Physical installation considerations will be guided by the installation location

(central office, uncontrolled, or customer locations). Initial network configuration will determine synchronization requirements.

Synchronization should be planned on a network basis considering items like topology, reliability, internetwork connectivity, and service evolution.

Contents

The following sections are included in this chapter:

Physical Arrangements

Cross-connections

Synchronization

365-372-300

Issue 8.0, September 2006

5 - 1