Programming instructions

143
Upgrades and FRUs
Powering Up the Peripheral Cabinet
To power up the peripheral cabinet:
1. Ensure the voltage selector switch is set to the required setting for your
country.
2. Connect the external power cord at the rear of the unit.
3. Set the power switch on the rear of the unit to "I" (ON).
4. Switch on the power converter.
5. Replace the front panels.
Replacing Circuit Cards
Refer to “Safety Considerations” on page 98.
To remove a circuit card from a peripheral or DSU cabinet:
1. Log into the System Administration Tool (see page 8).
2. In the All forms (alphabetical) list, click Maintenance Commands.
3. Enter BUSY <PLID of faulty card> and enter CD (courtesy down).
4. Enter STATE <PLID of faulty card> to confirm that all circuits are busy.
5. Pull the upper and lower latches outward until they are both in the
horizontal release position.
6. Draw the card toward you.
7. Immediately place the card in an anti-static bag.
WARNING: HAZARDOUS VOLTAGES CAN EXIST ON
INSTALLED PERIPHERAL CARDS EVEN WHEN POWER IS
REMOVED FROM THE SYSTEM. GRASP CARDS BY THE
LOCK LATCHES ONLY. DO NOT TOUCH THE SIDES OF
CARDS.
CAUTION: To prevent static damage to electrical compo-
nents, wear the anti-static wrist strap whenever you handle
circuit cards.
Tip: You can replace peripheral interface cards or DSU cards while the unit
is operating.