EMC VNX5300 - Page 65

Disk-array enclosure expansion
65
EMC® VNX5300™ Hardware Information Guide
WARNING
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 61 LCC RJ-12 port
The cable connecting the LCC to the SPS is an RJ-12 to RJ-12. It has an RJ-45 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 62).
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 62).
Figure 62 Example of LCC B enclosure ID and bus ID
Table 40 describes the bus (loop) indicator status LEDs.
VNX-000106
LCC B
VNX-000107
Bus (loop) ID
Bus (loop) status LEDs
LCC enclosure ID
#
X4
6Gb SAS
Table 40 LCC bus (loop) status LEDs
Led Color State Description
Power fault Amber On Fault
— Off No fault or power off
Power on Green On Power on
—OffPower off