Installation Manual 48 Document #: LTRT-94704
Mediant 3000 & IPmedia 3000
3.3.1 Earthing (Grounding) the Chassis
Read the following earthing (grounding) warning notice before connecting the chassis to the
earth:
Earthing
Safety Earth
Intrinsically, the chassis must be safety-earthed using an equipment-earthing
conductor. Do not depend on locknut-bushings and double-locknuts for
bonding. Use the earthing hardware provided with the chassis.
Earthing Electrode
The chassis must be earthed to a stable local earth reference. The chassis
earth terminal should be connected through a separate earth wire (6-8 AWG
recommended) to the rack's earthing. The earth connection’s resistance must
not be greater than 0.1 Ohm. Verify that the rack’s earthing is properly
performed.
¾ To connect the earthing cable:
Permanently connect the chassis to a suitable earth with the earthing screw on the
rear connector panel using a one-hole G-32 lug and a 6-8 AWG wire.
3.3.2 Cabling RTM-6310 Interfaces
The cabling of the interfaces provided on RTM-6310 includes the following:
PSTN interfaces (depending on software configuration):
• Connecting to STM-1/OC-3 interfaces (refer to ''Connecting STM-1/OC-3 PSTN
Interfaces'' on page 48)
• Con
necting to T3 interfaces (refer to ''Connecting T3 PSTN Interfaces'' on page
50)
Con
necting the Gigabit Ethernet interfaces to the IP network or LAN (refer to
''Connecting GbE Interfaces to IP Network'' on page 51)
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