AT-3606F/SM, SC, ST Connectivity
28
4.
When the Link indicator illuminates, connect the other of the paired
connectors to the TX port on the hub.
or
5.
If Link stays off, unplug the connector from RX and use the other of the
pair.
Fiber Optic
Connectors
Fiber optic repeaters use one pair of ST, SC, or SMA type connectors per port
connection.
ATI offers repeater models with any one of the three types (ST, SC, or SM)
because many existing (usually older) networking environments use SMA (or
Biconic) connectors that are not physically compatible with ST or SC
connectors. ST and SC connectors have recently become popular because
they have less attenuation and vulnerability to human error than SMA
connectors.
If your existing network uses a mix of ST, SC, and/or SC systems, a hybrid
cable is commercially available. This cable allows easy conversion from one
type of connector to the other. This cable is a one-meter duplex fiber optic
cable with one type of connector pairs on one end and another type of
connector pairs on the other.
Figure 25 shows the bayonet-style ST connectors.
Attention
The ST connector is keyed. Gently rotate the connector to ensure proper
mating of the ST plug receptacle. Be careful not to force the connector
mating or you might damage the hub’s connector.
Figure 26 shows the SC (Subscriber Channel) connector with square push-
pull mating interface. Also shown is the optional duplexing clip. This clip
helps prevent confusion between the transmit/receive (TX/RX) left-right
sequence when an SC connector is plugged into an SC port.
Figure 25:
ST Connectors for
Fiber Optic Cabling
