Hitachi AMS 2100 Hardware Manual page 155

• The IN and OUT connectors on the ENC units have blue and green
labels, respectively.
Complete the following steps to install the ENC cables. Refer to the following
two illustrations (Figure 5-34 (page 5-38)
when installing ENC cables.
1. Remove the rubber cap from the ENC connector on the control unit.
2. Connect the ENC cable to the control unit.
3. Connect the ENC cable to the ENC unit of the expansion unit.
NOTE: Connect control unit#0 of the base unit with the ENC unit #0 of the
expansion unit (RKAK) and the control unit#1 of the base unit with the ENC
unit #1 of the expansion unit (RKAK).
4. Connect the cable marked in milky white from PATH#0 of the base unit
to the IN side of the ENC unit of expansion unit (Unit ID#1).
5. When three or more expansion units are mounted, connect the
connector labeled OUT and the connector labeled IN on the ENC unit of
the expansion units (RKAKs) using the ENC cables.
a. Remove the rubber cap of the ENC units in the locations where the
ENC cables are to be connected.
b. Connect each of the connectors with the ENC cables to the OUT side
and the IN side of the ENC unit from which the rubber cap was
removed.
6. After connecting the ENC cables, roll up the excess part of each cable in
a circle and tighten it lightly with the velcro tie.
CAUTION! To prevent electromagnetic interference from a power
cable, to the signals in an ENC cable, do not route power cables
near an ENC cable.
Hitachi AMS 2100/2300 Storage System Hardware Guide
and
Installation
Figure 5-35 (page 5-39))
5–37