Nortel Networks 1000M - Manual (Page 34)

34 Cabinet system equipment
Table 3
Multi and Single-mode glass optical cable requirements for distances up to 3 km (1.8 mi)
Parameter Minimum Typical Maximum Units
Glass Fiber Cable
Length 3.0 km
Cable Attenuation
@1300 nm 1.5 (multi-mode)
0.5 (Single Mode)
2.0 (multi-mode)
0.7 (Single Mode) dB/km
Modal Bandwidth
@1300 nm 200 500 MHz * km
Chromatic Dispersion
@1300 nm 6 ps/nm * km
Typical 3 dB Optical
Bandwidth 180 MHz * km
The fiber link is limited to a maximum length of 3 km. To guarantee reliable
operation, a bandwidth of 150% should be maintained. If the link is
increased beyond the 3 km length the 150% margin is deteriorated possibly
resulting in link malfunction under some conditions.
Table 4 "Cabinet system
miscellaneous cables and wires" (page 34) lists miscellaneous cables and
wires used with the Chassis system.
Table 4
Cabinet system miscellaneous cables and wires
Cable and wire Purpose and description
A0632902 Fiber-optic cable (multi-mode plastic) Connects a main and expansion chassis by
interfacing with a fiber expansion daughterboard
and a Fiber Receiver card.
Length: 10 m (33 ft)
A0632902 Fiber-optic cable (multimode plastic) Connects a main and expansion cabinet by
interfacing with a fiber expansion daughterboard
and a Fiber Receiver card.
Length: 10 m (33 ft)
NE-A25B 25-pair cable Connects Intelligent Peripheral Equipment
cards to the cross-connect terminal. NE-A25B
connectors are on the back of each cabinet.
Note 1: This cable is available in different versions, depending on local EMC specifications.
Note 2: These cables are not supported under EMC specifications VL43.140P.
Nortel Communication Server 1000
Communication Server 1000M and Meridian 1 Small System Installation and Commissioning
NN43011-310 01.04 Standard
Release 5.0 13 May 2008
Copyright © 2008, Nortel Networks
.