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107

APPENDIX E: Installing Modules in the Matrix ServSwitch

E.2 Swapping In an Expansion Module

Making sure that the Matrix ServSwitch is turned OFF and unplugged, unscrew

and remove any blank plate over the opening of the Matrix ServSwitch’s Expansion

slot. (You should always have a plate covering this slot when a Terminator Module

is in it. If there is a plate, you can save it if you want to, but you shouldn’t need it

any more; the Expansion Module has its own termination circuitry, so you wouldn’t

normally ever have to replace it with a Terminator Module, even if you go back to

operating the Switch by itself.)

Now, using needlenose pliers or a similar tool, reach far back in the slot (at the

level of the slot’s widest point) and gently remove any Terminator Module installed

in it, as shown at the top of Figure E-2. (You should never leave the Switch without

any module at all installed in this

slot, because the Switch will be totally disabled.)

Carefully push the Expansion Module

into the now-vacant slot, as shown at the

bottom of Figure E-2—being careful not to pinch the wiring near the internal

block connector—and screw the Module on securely.

Once the Expansion Module is installed, you can run Expansion Cables from the

Module’s IN and OUT ports to your other Switches; see Section 3.4.

Figure E-2. Removing the Terminator Module (top) and plugging in an

Expansion Module (bottom).

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