Installing A Pac - Allied Telesis AR Series Hardware Reference Manual

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Installing a PAC

PACs can be installed in AR725, AR740, and AR745 routers, one PAC per
router.
PACs should only be installed by authorised service personnel. Unauthorised
opening of the router's lid may cause danger of injury from electric shock,
damage to the router, and invalidation of the product warranty.
Before installing a PAC:
1. Check that you have the correct tools and equipment.
You will need a medium-sized posidrive screwdriver.
2. Avoid injury by working in a safe environment.
The workspace should be free of hazards, and there should be sufficient
room to lay out the router, PAC, and tools.
3. Unpack the PAC in an antistatic environment.
Do not attempt to install any hardware without observing correct antistatic
procedures. Failure to do so may damage the router or PAC. If you are unsure
what the 'correct' procedures are, contact your authorised Allied Telesyn
distributor or reseller.
To install a PAC:
1. If connected, disconnect the router's RPS power supply.
2. Turn off the router and remove the mains power cord.
Before removing the router's lid, the power cord and, if connected, RPS power
cord should be disconnected to reduce risk of electrical shock.
3. Remove all interface cables.
4. Remove the router's lid.
The router lid is secured by four posidrive screws, two on each side, plus
two on top of the case.
The router may need to be removed from any rack mounting system before
the lid can be removed.
5. If not already installed, install the PAC pillars.
PAC mounting pillars are normally installed when the router is
manufactured. If the pillars aren't installed, use the metal pillars that ship
with each PAC (not the plastic pillars).
Carefully screw the pillars into the three threaded pillar mounts on the
router's base board. The pillars should be firm but not overtight.
Figure 61 on page 99 shows the PAC pillar mounts on an AR740 base
board.
AR Router
C613-03031-01 REV E