Technical data

5-20
Site Preparation and Installation
5
Environmental Monitor Cables
Depending on whether your installation includes a SCSI Device
Storage Module and/or an optional alarm board, install the RJ45
cabling for the Environmental Monitor circuitry as
described in the
following table.
Power Cables (AC system)
1. Plug the socket end of the system’s power cord into the AC
power inlet located on the lower back panel.
2. If you intend to use a console terminal, plug the socket end of
the console terminal’s power cord into the AC power inlet on
the back of the terminal.
3. Attach power cords to all other associated equipment.
4. Plug the power cords into appropriate electrical outlets (if
any of the equipment is rack-mounted, the rack may be
equipped with power distribution modules).
Power Cables (DC system)
1. Power down the –24/–48Vdc supply.
!
Caution
Use a –24/–48Vdc supply source that is electrically
isolated from the main DC source. The –24/–48Vdc
source is to be reliably connected to ground.
Table 5-1. Environmental Monitor Cabling
SCSI Enclosure
Present?
Alarm Board
Present?
Install RJ45 Cables as Follows
Yes Yes System power supply to SCSI enclosure. SCSI
enclosure to alarm board.
No System power supply to SCSI enclosure.
No Yes System power supply to alarm board.
No No Environmental Monitor cabling necessary.