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1000BASE-SX GBIC specifications 57
ATTENTION
You must disable autonegotiation before operating the 1000BASE-T GBIC.
By default, GBICs inserted into certain product-specific modules are set
for Autonegotiation = True. If autonegotiation does not work initially, Nortel
recommends that you reconfigure the switch to use a fixed-speed setting of 1000
Mbit/s, full-duplex, on both sides.
The maximum current requirement of the GBIC is 375 milliamperes (mA) at
5 volts (V).
The following table describes the 1000BASE-T GBIC.
Table 23
1000BASE-T GBIC specifications
Parameter
Specifications
Standards IEEE 802.3z, IEEE 802.3ab
Connectors RJ-45
Cabling CAT5 unshielded twisted pair (UTP)
Distance Up to 100 m
1000BASE-SX GBIC specifications
The 1000BASE-SX GBIC provides 1000BASE-SX Gigabit Ethernet
connectivity using SC duplex multimode fiber connectors. This GBIC
supports full-duplex operation only. The part number of this GBIC is
AA1419001-E5.
The following table describes standards, connectors, cabling, and distance
for the 1000BASE-SX GBIC.
CAUTION
When multimode fiber is used in long-distance applications,
external, removable, mode-conditioning patch cords may be
required to prevent differential mode delay (DMD). Excessive DMD
can cause an increase in the bit error rate (BER). You can order
mode conditioning patch cords through Nortel:
•
SC-SC Mode-Conditioning Patch Cord 62.5/125 (part
number AA0018035)
• SC-SC Mode-Conditioning Patch Cord 50/125 (part
number AA0018036)
Nortel Metro Ethernet Routing Switch 8600
Installation — SFP, XFP, and GBIC Hardware Components
NN46220-301 02.04 Standard
4.2 14 February 2008
Copyright © 2008, Nortel Networks
.