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Chapter 3 — System and site requirements
Table 13
AC input requirements for each NTDK91 and NTDK92 (Germany)
Recommended: 230 volts
Voltage
Maximum limits: 180 and 250 volts
Single phase
50 Hz
Frequency
550 VA maximum
Power
(I/P max)
16A
Fuse
Receptacles by DIN regulation
Outlet Type
Site requirements
The following is a list of required site features for an optimal Option 11C
Mini AC-powered system installation.
If a dedicated panel cannot provide the conditions listed below, use an
Isolation Transformer. Refer to "Alternative AC-powered installation" on
page 58.
•
Dedicated circuit breaker panel
A dedicated circuit breaker panel provides power only to the Option 11C
Mini system and its related hardware, such as TTYs and printers
Note: You can not always power a complete system from a single
circuit-breaker panel. For example, when chassis are located remotely.
•
Insulated copper ground conductor
Insulated copper ground conductor connects the ground bus in the
dedicated panel to the main service panel ground or building ground
reference. Route the insulated copper ground conductor through the
same conduit as the supply conductors that feed the panel.
•
Isolated-ground receptacles
All outlets connected to the dedicated panel must be of the isolated
ground type. Use a separate circuit for each device connected to the
panel. Outlets that provide service to the chassis must be close enough so
that the power cord can reach the chassis power supply.
•
Isolated ground bus in the electrical panel, where permitted by local
codes
Option 11C Mini
Planning and Installation Guide
Page 57 of 332
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