EMC VNX Series Hardware Information Manual page 92

Disk-array enclosures
92 EMC VNX8000 Hardware Information Guide
The SPS (RJ-12) port is a LAN port not a WAN port. LAN ports contain safety extra-low
voltage (SELV) circuits, and WAN ports contain telephone-network voltage (TNV) circuits.
An RJ-45 (or TNV-type) looks the same as the RJ-12 except for two very important
differences. An RJ-45 is an 8-wire modular jack. The RJ-12 is a six-wire modular jack. The
RJ-45 plugs and jacks are wider than their RJ-12 counterparts - 7/16" vs 3/8". An RJ-45
plug won't fit into an R-J12 jack. But an RJ-12 plug will fit into an RJ-45 jack. Use caution
when connecting cables. To avoid electric shock, do not attempt to connect TNV circuits
to SELV circuits.
Figure 72 LCC RJ-12 port
The cable connecting the LCC to the SPS is an RJ-12 to RJ-12. It has an RJ-12 adapter (LCC
side) on one end and a RJ-12 (SPS side) adapter on the other end
LCC enclosure ID (enclosure address) and bus ID
On the rear of the LCC (A and B), an LCC enclosure ID indicator is provided. This ID
indicator is a seven-segment LED display for displaying decimal numbers. The LCC
enclosure ID appears on both LCCs (A and B) which is the same ID number. The enclosure
ID is set at installation (Figure
Each LCC includes a bus (loop) identification indicator. This indicator includes two
seven-segment LED displays for displaying decimal numbers. The SP initializes the bus ID
when the operating system is loaded
Figure 73 Example of an LCC B enclosure ID, fault and power status LEDs, and bus ID
73).
(Figure 73).
Bus (loop) fault
status LED (amber)
Bus (loop) ID
Bus (loop) power
status LED (green)
#
(Figure 17 on page
LCC enclosure ID
#
LCC B
31).
LCC B
VNX-000107