ADTRAN NetVanta 1748F Series, Hardware Installation Manual

Page: 32 / 42

Port Connections ADTRAN 1748F Switch
32 Copyright © 2016 ADTRAN, Inc. 61700558F1-34B
Figure 15. Making Connections to an SFP+ Transceiver
Follow these steps to connect cables to SFP/SFP+ transceiver ports.
Connecting to QSFP+ Fiber Optic Ports
The switch includes four slots for 40 Gigabit Ethernet QSFP+ fiber-optic transceivers. Note that 40G fiber optic
ports can provide either one 40 Gbps full duplex link, four independent 10G fiber optic links. Connecting a 40G
QSFP+ port to four 10G SFP+ ports requires the use of a breakout cable.
Instructions for Connecting to SFP/SFP+ Fiber Optic Ports
Step Action
1 Remove and keep the fiber port’s rubber cover. When not connected to a fiber cable, the rubber
cover should be replaced to protect the optics.
2 Check that the fiber terminators are clean. You can clean the cable plugs by wiping them gently
with a clean tissue or cotton ball moistened with a little ethanol. Dirty fiber terminators on fiber
cables will impair the quality of the light transmitted through the cable and lead to degraded
performance on the port.
3 Connect one end of the cable to the LC connector on one of the switch’s SFP transceivers and
the other end to the LC port on the other device. Since both LC connectors are keyed, the cable
can only be attached in the correct orientation (see
Figure on page 32 ).
4 As a connection is made, check the Link LED on the switch corresponding to the port to be sure
that the connection is valid.
Be sure to secure cables properly and route them away from the switch without exceeding
the minimum bending radius for fiber cables (typically a few inches). Use cable ties to
bundle cables together and secure coiled loops of excess cable. Do not let cables hang free
supporting their own weight or pull in any way that puts stress on the connectors.
Fiber Optic Cable
SFP+ Transceiver