Installation
WARNING: Only qualified personnel should install thi s device. Use an
earthed wrist-band!

Keying your FDDI

Connectors

Keys are provided to enable you to set up M, S, A or B connector keying
on the FDDI MIC Media Module. The connectors on the fiber cable wi ll
have, or can be set up to have, matching keys.
Your key selection should be guided by the following definitions. Full details
are given in the LinkSwitch and RingBuilder module manuals.
Select the key you want. With the key letter upmost, push the key into the
key way in the case of the launcher (see Figure 1) until the latches click
into place.
Figure 1 Inserting a key
To remove a key, you need to lift the inner bar and depress the center lug
to disengage them before withdrawing the key (see Figure 2). Do NOT use
excessive force!
Code Key Type
AUsed for dual-attached and dual-homed connections, primary
in/secondary out
BUsed for dual-attached and dual-homed connections, secondary
in/primary out.
M Used for single-attached connections, master or concentrator port.
S Used for single-attached connections, slave or workstation port.