xl Modules Installation Guide 2007-12

23
ProCurve Switch xl Modules
Installing the Modules
Module Cable Type Maximum Length
mini-GBIC and the 10/100/1000-T xl Modules
Gigabit-SX operation:
multimode fiber-optic
cables fitted with LC
connectors
220 meters to 550 meters,
depending on the cable
used. See “Fiber-Optic
Cables” on
page 38 for
more information.
Gigabit-LX operation:
single-mode fiber-
optic cables fitted with
LC connectors.
multimode fiber-optic
cables may also be
used—see “Fiber-
Optic Cables” on
page
38.
• single-mode cable: 10
kilometers
• multimode cable: 550
meters
Gigabit-LH operation:
the same single-mode
fiber-optic cables used
for Gigabit-LX.
70 kilometers
Notes:
Gigabit-LX – If multimode cable is used, a mode conditioning patch cord may be needed — see “Mode Conditioning
Patch Cord” on
page 43 for more information.
Gigabit-LH – The transmission distances are dependent on the particular fiber loss and coupling loss involved, among
other factors, and can be estimated from the optical loss budget. For distances less than 20km, a 10dB attenuator must
be used. For distances between 20km and 40km, a 5dB attenuator must be used. Attenuators can be purchased from
most cable vendors.
hp procurve
mini-GBIC
xl module
J4878A
4321
Mode
Link
1
Mode
Link
1
2
3
4
xl
module
A
B
fiber-optic
cable with
LC connector
Gigabit-SX or
Gigabit-LX
mini-GBICs