Hitachi AMS 2100 Hardware Manual page 158

Connecting ENC cables (high-density expansion unit)
This section provides basic instructions to connect ENC cables to the high-
density expansion unit. See the previous section for information to connect
cables to a standard storage expansion unit.
NOTE: The following information is provided for convenience to HDS
service personnel and HDS partners who are authorized to perform these
procedures. Complete instructions are located in the AMS 2000
Maintenance Manual.
Use the ENC cables supplied with the high-density expansion unit to connect
an ENC unit in a high density expansion unit to the base unit controller(s)
and/or to other expansion units or high-density expansion units. Two ENC
cables are supplied with each high-density expansion unit.
CAUTION! The connectors on the ends of an ENC cable are
different. Check the label on the connector before plugging it in.
Enc connectors are designed to slide easily into the connector on
the ENC unit. If a connector does not plug in easily, check the
connector to make sure you have the correct end of the cable.
As shown in
base unit is stamped with a diamond. This connector can also plug into an
OUT connector on an ENC unit. The connector that plugs into the IN
connector on an ENC unit is stamped with a circle.
Item

5–40
Figure 5-36, the connector that plugs into the control unit on a
Figure 5-36: ENC Connectors
Table 5-9: ENC Connectors
Description Item
Lock Tab (pull tab
to unlock connector

before unplugging
it)
Installation
Hitachi AMS 2100/2300 Storage System Hardware Guide
Description Item
Diamond stamp
on controller /

ENC OUT end of
cable
Description
Circle stamp on
ENC IN end of
cable.