Multiple Cabinet Installation; Adding Expansion Cabinets To Basic Ksu - Samsung DCS Installation Manual

Samsung DCS
Installation
NOTE: Failure to set the battery switch will prevent the system from saving any customer-programmed data.
6. Before beginning programming, reset the database by clearing memory using MMC 811 (see the
Samsung DCS Combined Programming Manual for details).

2.3 Multiple Cabinet Installation

1. Mount the expansion cabinets in the same manner as the basic KSU. The expansion cabinets may
be mounted above, below or to the left or right of the KSU within the limits of the power exten-
sion cord and the HDLC cable (Figure 2–3).
2. Insert the EXPN-A card into the slot labelled SLOT 7/EXPN A of the basic KSU (Figures 2–4
and 2–7).
3. Insert the EXPN-B card into the slot labelled EXPN-B of each expansion cabinet (Figures 2–4
and 2–8).
4. Connect the first expansion cabinet to the basic KSU by plugging one end of the HDLC cable
into the lower position of the EXPN-A card (marked FIRST) and the other end into the EXPN-B
card.
5. Connect the second expansion cabinet (if required) to the basic KSU by plugging one end of the
HDLC cable into the upper position of the EXPN-A card (marked SECOND) and the other end
into the EXPN-B card.
6. Connect AC power to each expansion cabinet using the power extension cables provided (Figure
2–4).
CAUTION: Use only the type of power extension cables supplied with the expansion cabinets.
DO NOT CONNECT EXPANSION CABINETS DIRECTLY TO AN AC OUTLET. This is to
prevent the connection of multiple grounds to the system.

2.4 Adding Expansion Cabinets to Basic KSU

WARNING: Unplug all sources of AC electricity from the KSU before attempting this proce-
dure.
1. Unplug the KSU .
2. Disconnect all cables and wires from the KSU (and the first expansion cabinet if installed).
3. If there is an EXPN-A card installed in slot 7 of the KSU, go to step 4 now. If there is a card
other than an EXPN-A card installed in slot 7 of the KSU, remove it now and reinstall it in the
new expansion cabinet (and then go to step 4).
4. Proceed as instructed in Part 2.3, Multiple Cabinet Installation, above.
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Part 2
March 2001