Ground And Power Connections; Ground Connections - Alcatel MainStreet 2902 Manual

4 — Ground and power connections
4.1

Ground connections

The three types of ground points are: protective earth, telecom safety earth (labeled
Sig/Gnd) and energy dumping ground (labeled EDG). Figure 4-1 identifies the
ground points on the unit. To avoid electrical damage to the 2902 MainStreet system,
all three ground types must be permanently and separately grounded.
The cables used for these ground connections must be long enough to reach the
building ground point without splices.
The telecom safety earth cable should be 1.5 mm
in color.
Procedure 4-1 To ground the unit
Tools required:
1
4-2
Figure 4-1 Ground points on the 2902 MainStreet system
Slot 2
Slot 1
•
wire stripper
•
crimp tool
•
one ring lug
•
three spade lugs
•
slot screwdriver
•
5/16-inch nut driver
•
10, 12 or 16 AWG wire (2.6 mm, 2 mm and 1.5 nominal diameter respectively)
(10 or 12 AWG is recommended)
Ensure that the unit is turned off.
EDG Sig/Gnd
P1 P2
Rx-1 Tx-1 Rx-2 Tx-2 Line-1 Line-2 Modem
2
(16 AWG), and green and yellow
2902 MainStreet Technical Practices
Protective
earth
I
EDG Sig/Gnd
O
Terminal Alarm
Loop Status
U 1 2
Display
90-2906-01 May 2002
8973