Nortel Meridian 1 option 11C Planning And Installation Manual page 47

#&KDSWHU#6#²#6\VWHP#DQG#VLWH#UHTXLUHPHQWV
5HFHSWDFOHV
Receptacle requirements are as follows:
• When mounted on the wall, they must be installed within reach of the
cabinet power cords
• All receptacles served by the secondary must be of the isolated ground
type
• The ground prong of each outlet must be connected by an insulated
conductor to the system SPG.
If the transformer has an isolated secondary ground lug, use it as the SPG. If
it doesn't, use the chassis ground of the transformer as the Single Point
Ground.
,QVWDOOLQJ#DQ#,VRODWLRQ#7UDQVIRUPHU
7UDQVIRUPHUV#ZLWK#SOXJJDEOH#SRZHU#FRUGV=
1 Connect the power cords of all Option 11C system equipment to the
outlets on the transformer secondary.
2 Secure an insulated conductor between the ground lug on the main
cabinet of the Option 11C and the SPG lug on the transformer. Place a
"DO NOT DISCONNECT" tag on it.
Do not fasten or tie this conductor to the power cable feeding the
NTDK78 power supply.
Note: All equipment associated with the Option 11C must be powered
exclusively from the secondary of the transformer, and must be grounded
to the secondary isolated ground lug. Do not connect equipment
unrelated to the Option 11C system to an isolation transformer powering
it.
The transformer primary must be powered through a dedicated circuit. If the
primary has a pluggable cord, ensure an additional ground connection is made
between the Option 11C SPG and a known building ground reference. This
connection is vital for safe and reliable operation. Do not connect any
Option 11C system ground lines to structural steel or water pipes, or any other
unreliable ground path. Use a ground point known to be "clean" and
permanent. Place a "DO NOT DISCONNECT" tag on it. Figure 10 on page
48 shows the pluggable cord connections.
2SWLRQ#44& 3ODQQLQJ#DQG#,QVWDOODWLRQ#*XLGH
3DJH#7:#RI#699