1.1.4 Environmental Requirements
Meeting established environmental standards maximizes the life of the system. Make sure that the site
is not:
• In direct sunlight or in hot, cold or humid places.
• In dusty areas or in areas where sulfuric gases are produced.
• In places where shocks or vibrations are frequent or strong.
• In places where water or other fluids comes in contact with the equipment.
• In areas near high-frequency machines or electric welders.
• Near computers, telexes, microwaves, air conditioners, etc.
• Near radio antennas (including shortwave).
1.1.5 Unpacking
Unpack the KSU and check it against the following list. Inspect for physical damage.
Table 2-1 KSU Packing List
Items List of Contents QTY
1228M-B KSU 1228M-B KSU 1
AC Power Cord 1
Screws (M4.1x25) 4
Wall-Mounting Template 1
1228ME-B EXP 1228ME-B EXP 1
AC Power Cord 1
Screws (M4.1x25) 4
Expansion Cable 1
Wall-Mounting Template 1
1.2 Installing the Main KSU (1228M-B KSU)
The Main KSU has a CPU-B card, an eight digital and four analog extension Interface, a control relay
circuit for External devices, and two mounting spaces for optional cards (080E-B1/008E-B1/000E-
B1/1PRIU-C1).
An Expansion KSU can be added increasing system capacity. Each KSU (Main or Expansion) is
powered by its own power supply.
SL1100 ISSUE 5.0
2-2 Installation
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