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1000BaseSFP Fiber Port Connection
The Gigabit Ethernet ports on the IMC-21GA are 1000BaseSFP Fiber ports,
which require using Gigabit mini-GBIC fiber transceivers to work
properly.
The concept behind the LC port and cable is straightforward. Suppose you
are connecting devices I and II; contrary to electrical signals, optical
signals do not require a circuit in order to transmit data. Consequently,
one of the optical lines is used to transmit data from device I to device II,
and the other optical line is used transmit data from device II to device I,
for full-duplex transmission.
Remember to connect the Tx (transmit) port of device I to the Rx (receive)
port of device II, and the Rx (receive) port of device I to the Tx (transmit)
port of device II. If you make your own cable, we suggest labeling the two
sides of the same line with the same letter (A-to-A and B-to-B, as shown
below, or A1-to-A2 and B1-to-B2).
LC-Port Pinouts
LC-Port to LC-Port Cable Wiring
1000BaseSX/LX Fiber Port (IMC-21GA-SX-SC,
IMC-21GA-LX-SC)
The concept behind the SC port and cable is straightforward. Suppose you
are connecting devices I and II. Contrary to electrical signals, optical
signals do not require a circuit in order to transmit data. Consequently,
one of the optical lines is used to transmit data from device I to device II,
and the other optical line is used transmit data from device II to device I,
for full-duplex transmission.
All you need to remember is to connect the Tx (transmit) port of device I
to the Rx (receive) port of device II, and the Rx (receive) port of device I
to the Tx (transmit) port of device II. If you make your own cables, we
suggest labeling the two sides of the same line with the same letter
(A-to-A and B-to-B, as shown below, or A1-to-A2 and B1-to-B2).
SC-Port Pinouts
SC-Port to SC-Port Cable Wiring
