ADC LTPH-UM-1261-01 Manuel D’Utilisation

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B
ONDING
 (S
AFETY
) G
ROUND
, P
OWER
 
AND
 F
RAME
 G
ROUND
, A
LARM
AND
 O
PTIONAL
 
F
AN
 I
NPUTS
Bonding (safety) ground, power and frame ground, and alarm connections and cabling are marked for ease of 
installation [see ground lug location (labeled BONDING WIRE MIN #10 AWG)], TB1, and TB2 on the rear panel of 
the HMS-318 List 3 Shelf, and the following procedures for proper safety ground, power, alarm, and optional fan 
(alarms) connections (see 
).
Bonding (Safety) Ground Procedure
To connect the Bonding (Safety) ground to the HMS-318 List 3 Shelf, complete the following steps:
!
IMPORTANT
Before making connections to the HMS-318 List 3 shelf, ensure that the Main CO power breaker 
is off. Otherwise, severe injury to the installer or damage to the unit may result.
Note:
 The ground wire exiting the HMS-318 List 3 Shelf is terminated with a ground lug. The lug can be 
either a one-hole or two-hole lug. The surface of the lug that connects to the HMS-318 List 3 Shelf should 
be cleaned with an antioxidant. The same should also be applied to the surface of the telco-style rack where 
the connection is to be made. The #12 Hexhead screw (supplied) is used to connect the grounding lug to 
the HMS-318 List 3 Shelf.