Installation manual
ESI Communications Servers Hardware Installation Manual ESI-50
H.3
Expansion Cabinet installation
The Expansion Cabinet allows the ESI-50’s capacity to grow by up to two additional port cards. The cards are
connected via ribbon cables, through the opening in the back of the Expansion Cabinet, to the Base Cabinet.
Note: You can add only one Expansion Cabinet to an ESI-50.
To install an Expansion Cabinet:
1. Wear a grounding strap and avoid unnecessary movement while
handling the circuit boards.
2. Unplug the power to the ESI-50 system.
3. Remove the Base Cabinet lid by pressing the release tab at the top of the
cabinet and rock back the lid from the bottom of the cabinet.
4. Install the Expansion Cabinet on the front of the Base Cabinet in place of
the Base Cabinet's lid.
5. Lock the Expansion Cabinet to the Base Cabinet by snapping the top in
place and reinstalling the retaining screw.
6. Connect the grounding strap from the Expansion Cabinet's grounding lug
(located on the bottom of the cabinet) to the Base Cabinet's grounding
lug. (See also “Grounding instructions,” page I.1).
7. Through the large opening in the back of the Expansion Cabinet,
connect the ribbon cable(s) from the port card(s) to the card
directly below.
8. Re-install the original lid from the Base Cabinet on the face of the
Expansion Cabinet.
Port card installation
Adding or replacing port cards will require the system to be taken out of service
(the ESI-50 doesn’t support “hot-swapping” of its port cards).
These instructions cover both types of ESI-50 port cards — the 482 card (used on all ESI-50 models) and the
DLC82 card (not compatible with the ESI-50L
1
). Each card has cable connectors in the same location, but the
connectors have different names depending on the card type:
• On the 482 card, the connectors are J5 and J6, respectively.
• On the DLC82 card, the connectors are J8 and J9, respectively.
Therefore, for brevity’s sake, these instructions and their diagram describe the connectors as J5/J8 and J6/J9.
Important: The ESI-50 can use only 482 and DLC82 port cards (see “Port card options,” beginning on page A.4).
ALWAYS power down the system BEFORE adding or replacing any hardware. Also, be sure to
observe all proper procedures regarding the prevention of electrostatic discharge (ESD) when performing the
following procedures; otherwise, circuit boards may suffer damage.
The DLC82 can be installed in ONLY slot 2.
Whenever you change the port card configuration, you must create a backup file for the new configuration
to be able to perform the Restore function later.
(Continued)
1
If installing the ESI-50L, consult the ESI-50L Hardware Installation Manual (0450-xxxx).










