Strata CTX670 Installation
Ground the System
Strata CTX I&M 10/02
3-19
Strata
CTX67
0
Inst
alla
tion
Figure 3-11
Cabinet Grounding
Cabinet Motherboard
Cabinet
Motherboard
Cabinet
Motherboard
Cabinet
Motherboard
Cabinet
Motherboard
FG Screws
Base
Cabinet
Power
Supply
FG (Frame Ground) Screws
The Single Point Ground must always be connected to
the Base Cabinet Power Supply FG Screw
(Top cabinet - Wall Mount or Bottom cabinet - Floor Mount.)
Expansion
Cabinets
Up to six
Inter-cabinet green wires
supplied with each cabinet
Green/Green Yellow
ground wires from
Motherboard
Earth Ground:
AWG #6 Wire
(minimum)
Length: 60 Feet
(maximum)
Per General Rules of Article
250 of the National Electric
Code, NFPA70
ONEAC 6-AP
or 6-DP
Solid State
Secondary
Protectors
Third Wire
AC Ground
Insulated Ground Wire “B”
Note:
The impedance of the link
between point “A” and “B” must
be less than 0.25 ohms.
Note:
The ground must be
routed through the
same conduit as the
phase conductors
serving the system.
Single Point Ground (SPG)
Cold Water Pipe or Ground Rod
Note:
The SPG cannot be structural
steel members or conduit.
“A”
“A”
Note:
The impedance of
the link between
point “A” and “B”
must be less than
0.25 ohms.
Note:
The impedance of
the link between
point “A” and “B”
must be less than
0.25 ohms.
120VAC System Primary Power ( 1-5 cabinets only )
Building Main Power
Panel Electrical Ground
208VAC ± 20VAC (50/60 Hz)
or 240VAC ± 20VAC (50/60 Hz)
Dedicated 20 Amp
Branch Circuit.
If 208VAC is used, the plug may have to be
changed by a licensed electrician.
Note:
The system may be
powered by 120, 208,
or 240VAC.
NEMA 6-20R,
240VAC
208 or 240VAC System Primary Power ( 1-7 cabinets )
115VAC ± 10VAC (50/60 Hz)
Dedicated 20 Amp
Branch Circuit
Building Main Power
Panel Electrical Ground
“B”
AWG #6 Wire
(minimum)
Length: 60 Feet
(maximum)
Point “B” is always on the
Base Cabinet, whether it's
on the top or bottom.
NEMA 5-15R,
120VAC
5044
The cabinets must be
located no more than 9
feet from the AC outlet.
Summary of Contents for Strata CTX100
Page 16: ...Introduction Related Documents Media xii Strata CTX I M 10 02 ...
Page 94: ...Strata CTX100 Installation Installing the CTX100 Cabinet 2 24 Strata CTX I M 10 02 ...
Page 150: ...Strata CTX670 Installation Remote Expansion Cabinet Unit 3 56 Strata CTX I M 10 02 ...
Page 188: ...PCB Installation Network Requirements 4 38 Strata CTX I M 10 02 ...
Page 238: ...T1 Loop Back Testing 6 12 Strata CTX I M 10 02 ...
Page 310: ...Station Apparatus 2000 series Telephones 8 48 Strata CTX I M 10 02 ...
Page 342: ...Peripheral Installation Station Message Detail Recording SMDR 9 32 Strata CTX I M 10 02 ...