A SERVICE OF

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2. Cabling
4200-A2-GN21-30 June 2004
2-11
6. If NEBS compliance is required, install the ferrite chokes included in the NEBS
Compliance Upgrade, Feature Number 4200-F4-000. The larger of the two
ferrite chokes must be installed on any Ethernet cables used. (See Ethernet
Ferrite Choke Installation on page 2-7.) The smaller of the two ferrite chokes
must be installed on the alarm cable. Open the ferrite choke then snap it shut
around the alarm cable as close as possible to the ALARM jack. Secure it with
a cable tie.
Ground
Procedure
To connect the unit to a ground:
1. Crimp a ring terminal onto the stripped end of 14 AWG or heavier copper
ground wire.
2. Remove the screw marked by the ground symbol ( ) at the right side of the
front panel.
3. Fasten the ring terminal to the front panel using the same screw.
4. Attach the ground wire to an earth ground.
03-17449
POTS 1-24
4200
To Earth Ground