Continental Access SUPERTERM CIC1800, Инструкция по установке и обслуживанию, Страница: 16 / 92

POWER CONNECTIONS
Superterm CIC1800 / CICP1400UL 16
POWER CONNECTIONS
AC Power Source Grounding
The Superterm main circuit board has built-in
surge suppression devices. The surge suppressors
require a good earth ground connection to operate
effectively.
Check the DC resistance between the 120VAC
power ground terminal and a known earth ground
such as a metal water pipe or structural steel
building component
CAUTION
DC resistance between the 120VAC power
ground terminal and a known earth ground
must be no greater than 50 ohms.
If the DC resistance is acceptable, install the
120VAC power cabling using the ground terminal
as the earth ground.
120VAC Power
The Superterm system requires 120VAC, 60 Hz
voltage. The incoming 120VAC source voltage
connects to the AC Input Power Terminal Block
located in the lower left-hand corner of the
Superterm cabinet (see Figure 7).
NOTE: Use of a dedicated, unswitched
120VAC power source results in optimal
performance with minimum interference.
Superterm units with optional 220VAC power are
available where required for use outside of North
America. This feature not evaluated by ETL.
WARNING
Verify that the AC source voltage is switched off
at the breaker panel before proceeding with
connections.
Table I lists the incoming 120VAC source voltage
connections to the AC Input Power Terminal
Block.
Table 1- AC Input Power Terminal Block Connections
Incoming 120VAC Wire Color AC Input Terminal Block
Line Black L
Neutral
Ground
White
Green
Figure 7 - AC Input Power Terminal Block