Connecting Fiber-Optic Cables To Gbics; Gpim-09 Connection Using Multimode Cable - Enterasys Matrix E1 1G587-09 Installation Manual

3.8.2

Connecting Fiber-Optic Cables to GBICs

The Enterasys Networks GBICs (Models GPIM-01, GPIM-08, and GPIM-09) have SC style
connectors to connect cables from the Gigabit Ethernet network. Enterasys Networks offers
fiber-optic cables that use SC style connectors, which are keyed to ensure proper crossover of the
transmit and receive fibers.
NOTE: An odd number of crossovers (preferably one) must be maintained between like
devices so that the transmit port of one device is connected to the receive port of the
other device and vice versa.
Different size and wavelength fiber-optic cable is used for different applications. The GPIM-08 and
the GPIM-09 typically have a blue connector to indicate the long wavelength transceiver. The
GPIM-01 connector is typically black or beige, to indicate the short wavelength applications.
Before connecting a GBIC to the network, check the fiber specifications in
GBIC.
Since the fixed front panel ports, and the GPIM-01, GPIM-08, and GPIM-09 all have the SC
fiber-optic connector, the directions for connectivity are the same, except for when the GPIM-09 is
connected to multimode fiber. Refer to
fiber-optic cable.
3.8.3

GPIM-09 Connection Using Multimode Cable

NOTE: When using multimode fiber-optic cable for the GPIM-09 (long wavelength
transceiver), connect the Launch Mode Conditioning cable as detailed in the following
procedure. The following procedure is not needed when connecting single mode
fiber-optic cable to the GPIM-09. Launch Mode Conditioning cables are available from
Enterasys Networks.
To connect the GPIM-09 to the network using multimode fiber-optic cables, refer to
and proceed as follows:
1. Connect a Launch Mode Conditioning cable
➁
before connecting the Long Wavelength Gigabit fiber-optic device
a GPIM-09) to the multimode fiber-optic cabling.
Section 3.8.3 before connecting the GPIM-09 to multimode
➀
to each end of the multimode fiber-optic cables
Connecting to the Network
Appendix A for each
Figure 3-18
➂
(e.g., 1G-2GBIC with
Hardware Installation 3-25