Specifications

5.11.3 Installing SDI Cables and Power Cords
The SA900 storage array is shipped with internal cables and power cords
for storage devices installed at the factory. However, when you install SA7x
enclosures, you must install the internal SDI cables and connect the power cords.
If external SDI cables are required, they are ordered separately and shipped at
the same time the add-on is shipped. (Table 3–2 lists the external SDI cables.)
The H9A00 cabinet includes a left and a right vertical I/O bulkhead as shown in
Figure 5–39. Storage devices are connected by SDI cables to one of the five sets
of eight connectors on each bulkhead. A total of 10 devices can be connected to
the I/O bulkheads. The RA9x drive uses two SDI cables; the SA7x enclosure uses
two special one-to-four cables. Each cable terminates with four connectors. The
SA900 storage array can accommodate a maximum of 10 RA9x disk drives or 10
SA7x enclosures or 80 ports.
Use the following procedure to install and connect SDI cables and power cords:
1. Make sure that the Line Voltage Selector switch is in the proper position
and the Master On/Off switch on the enclosure is off. (See Section 3.7 for
information about setting the Line Voltage Selector switch.)
2. Install the cables from the drives and the enclosures on the left side of the
cabinet to the left vertical I/O bulkhead; install the cables from the drives
and the enclosures on the right side of the cabinet to the right vertical I/O
bulkhead. (See Figure 5–39.)
3. Connect the SDI cable connectors to the Port A and Port B connections on the
rear of the SA7x enclosure. Connect the other end of the cable connectors to
the vertical I/O bulkhead and secure with two 6-32 x 3/8-inch sems screws.
(The top four ports in each group of eight correspond to Port A, and the
bottom four ports in each group of eight correspond to Port B.)
4. Connect the power cords to the rear of the SA7x enclosure. (See
Figure 5–40.)
5–60 Storage Array Add-Ons and Upgrades