NEC A1160 - Manual (Page 41)

Cell Identification
3-3
Cell Identification
Each cell in a system has a unique physical cell identifier cell 0, cell 1, cell 2, or cell 3.
The management firmware uses the cell identifier to enable the cells within the system
to communicate with each other.
The cell identifier is established by the interconnect cables. The cell identifier is based
on which ends of the interconnect cables are connected to the interconnect ports on the
back of the cell. Each interconnect cable has an "A" and a "B" end.
Table 3-1 shows
which cable end needs to be connected to the interconnect ports to create specific cell
IDs.
Table 3-1 Relation of Interconnect Port and Cable End to Cell ID
Cell ID Port 2 Port 1 Port 0
Cell 0 B B B
Cell 1 B A A
Cell 2 B A B
Cell 3 A A A
A cell without any cables connected to the interconnect ports is assumed to be cell 0.
To allow the correct cell identifier to be saved, a system must be completely cabled
before the AC power is applied to the cells for the first time. Once established, the cell
identifier is static.
The cell identifier is shown on the same label as the system serial number. See Figure
3-4 for the location of the label.
System Serial Number
The system serial number uniquely identifies each system. All cells within a system
share the same system serial number.
A label with the system serial number is attached to each cell. Figure 3-4 shows the
label location in the cell.