Hitachi AMS 2100, Service Manual

Page: 66 / 192

1–26
Introduction
Hitachi AMS 2000 Family Storage System Service Guide
Control unit LEDs, connectors, and switches - AMS 2500
Figure 1-23 shows the control unit of an AMS 2500/RKHE2 base unit. The
upper control unit is identical, but is installed in the base unit upside down.
Figure 1-23: AMS 2500 Control Unit Connectors and LEDs
Table 1-15: AMS 2500 Control Unit Connectors and LEDs
Item Description Item Description Item Description
1
Fibre channel host
connectors
(8 per controller)
6
RST (Reset) Button
Resets the control unit and
performs a full dump.
Connector Path 1 to
ENC unit IN
2
Fibre Channel HALM
(Host Alarm) -
indicates that the host
connector is abnormal.
GP0 LED/GP1 LEDs
(green) - indicate that
the interface is
normal.
7
Reset LED (orange)
Blinks while the control unit
is resetting
Connector Path 2 to
ENC unit IN
8
C- Power LED (green) When
on, indicates that cache
memory is backed up.
Connector Path 3 to
ENC unit IN
3
Lock Lever (2 places)
9
Maintenance Port (LAN 0)
• ACT LED (yellow)
indicates data is being
transferred.
• LINK LED (green) When
ON, indicates that the
link status is normal.
Uninterruptable Power
Supply Connector
4
Alarm LED (red)
Indicates that the
control unit has failed.
10/100 Ethernet
management port
(LAN 1)
• ACT LED (yellow)
indicates data is being
transferred.
• LINK LED (green) When
ON, indicates that the
link status is normal.
Battery Expansion Unit
Connector
5
LOC LED (orange)
See
page 1-25
Connector Path 0 to ENC
unit IN Remote Adapter
connector