VM600 MPS hardware manual (standard version) MAMPS-HW/E 14 - 5
Edition 17 - February 2018
Detecting problems in the VM600 MPS rack
MAINTENANCE AND TROUBLESHOOTING
14.6.2 Replacing a suspect card
14.6.2.1 General precautions for removing cards
The AMC8, MPC4, IOC4T, IOC8T, RLC16 and IRC4 cards all feature a lever mechanism to
help the user to easily remove the card. Follow the procedure below and see Figure 14-1:
1- Disconnect all external cables connected to the card, for example, the communication
cable (RS-232) for an MPC4 card or front-end cables (J1, J2 and J3) for an IOC4T card.
2- Unfasten the two captive fixing screws. These are found at the top and at the bottom of
the card’s panel.
Certain precautions must be observed when replacing suspect cards.
These are described below.
HAZARDOUS VOLTAGES EXIST WITHIN VM600 SYSTEM RACKS (ABE04X).
W
HEN AN RPS6U RACK POWER SUPPLY, ASSOCIATED REAR PANEL OR CARD IS
REMOVED
FROM A VM600 SYSTEM RACK (ABE04X), THE RACK BACKPLANE –
CONTAINING HAZARDOUS VOLTAGES – IS EXPOSED AND THERE IS THE RISK OF
ELECTRIC
SHOCK, AS INDICATED BY THE USE OF THE FOLLOWING WARNING LABEL ON
THE
EQUIPMENT:
S
EE ALSO HAZARDOUS VOLTAGES AND THE RISK OF ELECTRIC SHOCK ON PAGE XV.
HAZARDOUS TEMPERATURES CAN EXIST WITHIN AND ON VM600 SYSTEM
RACKS
(ABE04X).
D
EPENDING ON THE AMBIENT OPERATING TEMPERATURE, NUMBER OF CARDS AND
POWER
SUPPLIES INSTALLED (AND THEIR CONFIGURATION AND OPERATION), THE
INSTALLATION
AND COOLING (FORCED OR NATURAL VENTILATION), THE TOP OF A
VM600 RACK CAN BECOME HOT AND THERE IS THE RISK OF BURNING HANDLING THE
RACK
, AS INDICATED BY THE USE OF THE FOLLOWING WARNING LABEL ON THE
EQUIPMENT
:
S
EE ALSO HOT SURFACES AND THE RISK OF BURNING ON PAGE XV.
When handling cards, the necessary precautions should be taken to
prevent damage due to electrostatic discharges.
See Handling precautions for electrostatic sensitive devices on page xvi for
further information.
Before “hot swapping” any card in the rear of a VM600 rack, any associated
processing card in the corresponding slots in the front of the rack must be
disconnected from the rack’s backplane.
See 8.4.2 Subsequent installation of cards ("hot-swapping” capability).
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