Version 5.4
45
May 2008
SIP Hardware Installation Manual
3. Installation
3.3 Cabling
The cabling of the device must be performed in the following order:
1.
Earthing (grounding) the chassis (refer to ''Earthing (Grounding) the Chassis'' on page
2.
Connecting the PSTN interfaces:
•
6310 blade:
♦
Connecting STM-1/OC-3 interfaces on the RTM-6310 (refer to ''Connecting
STM-1/OC-3 PSTN Interfaces'' on page
♦
Connecting T3 interfaces on the RTM-6310 (''Connecting T3 PSTN
Interfaces'' on page
•
8410 blade:
♦
Connecting E1/T1 PSTN interfaces on the RTM-8410 (refer to ''Connecting
E1/T1 PSTN Interfaces'' on page
3.
Connecting the Gigabit Ethernet (GbE) interfaces:
•
6310 blade:
Connecting GbE interfaces on the RTM-6310 (refer to ''Connecting
Gigabit Ethernet Ports'' on page
•
8410 blade:
Connecting GbE interfaces on the RTM-8410 (refer to ''Connecting
GbE Interfaces to IP Network'' on page
4.
Connecting the alarm terminal block closures on the PEM module (refer to
''Connecting the Alarm Terminal Block Closures'' on page
5.
Connecting DC power on the PEM module (refer to ''Connecting Power'' on page
For connecting the device's RS-232 interface to a PC, refer to ''Connecting the RS-232
Port to a PC'' on page
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, take this step:
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.