Connecting Fiber-Optic Cables To Gbics - Enterasys Matrix E1 Series Installation Manual

Figure 3-17 Eight-Wire Straight-Through Cable RJ45 Pinouts for
10BASE-T/100BASE-TX/1000BASE-T
➀
RJ45 device port
➁
Other device port
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.
À
TX1+ 1
RX1-
2
TX2+
3
TX3+
4
RX3-
5
RX2-
6
TX4+
7
RX4-
8
Section 3.8.3
Â
➂
RJ45-to-RJ45 straight-through cable
before connecting the GPIM-09 to multimode
Connecting to the Network
Á
1
TX2+
2 RX2-
3 TX1+
TX4+
4
RX4-
5
6 RX1-
7 TX3+
8 RX3-
Appendix A
Hardware Installation
for each
3-23