Cabletron Systems user manual CONNECTING THE FOT-F3 TO THE NETWORK, Setting the SQE Switch

CHAPTER 3: INSTALLATION

If you notice any discrepancies, contact Cabletron Systems Technical Support immediately. Refer to Chapter 1, Getting Help, for instructions.

3.2CONNECTING THE FOT-F3 TO THE NETWORK

After you are sure that all the requirements listed in Chapter 2, Installation Requirements, and Appendix A, Specifications, have been met, proceed with the installation instructions contained in this section.

Note: Ensure that the site where the FOT-F3 will be located will allow the AUI cable and the fiber optic link segment to be easily connected to the transceiver before you begin the installation procedures.

3.2.1Setting the SQE Switch

The Signal Quality Error (SQE) Test Switch allows you to enable or disable the SQE (“heartbeat”) test function. The SQE switch is the two position switch on the right side of the FOT-F3, located above the fiber optic ports (see Figure 3-1). The SQE test function is disabled when the transceiver is shipped.

Note: The SQE test function must be disabled if you are connecting the transceiver to Ethernet Version 1 equipment or to a repeater.

Set the SQE Switch as follows:

•To disable the SQE test function, set the switch (Figure 3-1) towards the optical ports to the off () setting.

•To enable the SQE test function, set the switch (Figure 3-1) away from the optical ports to the on () setting on the label.

3-2 FOT-F3 USER’S MANUAL