Installation manual

120 20/10/2004 PS10270JENAA01
Adding an expansion cabinet
The expansion cabinet is supplied with a bus extension cable, an uninterruptible electric power
supply module and an ROCT3B bus expansion card.
☞ Refer to Part 1 of this manual for full cabinet and card installation details.
Steps
1 Unpack the expansion cabinet and secure it to the wall, 20 to 30 cm (8 to 12 inches) from
the main cabinet.
2 Install the backup battery in the expansion cabinet.
3 Connect the expansion cabinet to the ground connection, but do not switch on the power
supply.
4 Power off the main cabinet.
5 If an expansion shelf is to be fitted while expanding the system, install the shelf and insert its
cards.
6 Close the front cover of the main cabinet and expansion cabinet.
7 Connect the bus extension cable to the main and expansion cabinets.
8 Switch on the expansion cabinet's uninterruptible power supply module.
9 Switch on the main cabinet's uninterruptible power supply module.
Power off
Power off the system before connecting the two cabinets.