Installation guide

Half-Duplex/Full-Duplex Auto-Negotiation
1-4
The GPIM options for the 5PIM-G06 are summarized in Table 1-1. Refer to the firmware Release
Notes for any changes or additions to this information. For more detailed specifications on the
GPIMs, refer to Appendix C.
1.2 HALF-DUPLEX/FULL-DUPLEX AUTO-NEGOTIATION
The fixed front panel ports on the module have the ability to auto-negotiate the ports’ mode of
operation (half-duplex or full-duplex) between two devices according to IEEE 802.3 standards.
During Auto-Negotiation, two devices automatically exchange information “telling” each other
their current operating mode. The Auto-Negotiation feature targets the maximum capability that
can be reached between the two devices. For example, the module can adjust to full-duplex
operation when the device on the other end of the connection can also adjust from half-duplex to
full-duplex. If the device on the other end of the connection can only operate in half-duplex mode,
then the module simply adjusts to operate in half-duplex mode.
Table 1-1 GPIM Options
Part Number Fiber Optic Connection Application
GPIM-01 SC Supports the 1000BASE-SX standard for
a 50 or 62.5 micron multimode fiber optic
cable connection.
GPIM-08 SC Supports the 1000BASE-SX standard for
a 10 micron single-mode fiber optic cable
connection.
GPIM-09 SC Supports the 1000BASE-SX standard for
a 10 micron single-mode, or the
1000BASE-LX long-haul standard for a
50 or 62.5 micron multimode fiber optic
cable connection.