Digital Service Unit; Superset Hub - Mitel 3300 ICP Hardware Technical Reference Manual

C 3
HAPTER
North America/Latin America (Continued) (Sheet 2 of 2)
Table 3.20:
Balance Network Setting (CO
Trunk Circuit Descriptor
Form)
National Complex
TBR21
Alternate Complex
:
NOTE
The 600 ohm setting is most often used for very short connections, such as those behind a PBX, IAD
1.
or similar device.
National Complex matches most unloaded central office lines. It is the most commonly used setting.
2.
There is no support for loaded loops.
3.
United Kingdom
Table 3.21:
Balance Network Setting (CO
Trunk Circuit Descriptor
Form)
600
National Complex
TBR21
Alternate Complex

Digital Service Unit

: Refer to the 3300 ICP Release 7.0 version of the Hardware Technical Reference Manual for DSU
NOTE
cabinet description details.

SUPERSET HUB

: Refer to the 3300 ICP Release 7.0 version of the Hardware Technical Reference Manual for
NOTE
SUPERSET™ HUB description details.
LS Impedance Values
AC
600 Ω
600 Ω
600 Ω
LS Impedance Values
AC
370 Ω+(620 Ω||310nF)
370 Ω+(620 Ω||310nF)
Same as "National Complex"
Same as "National Complex"
D
IGITAL
S U
ERVICES NITS AND
Balance
370 Ω+(1000 Ω||210nF)
Same as "National Complex"
Same as "National Complex"
Balance
370 Ω+(620 Ω||310nF)
370 Ω+(620 Ω||310nF)
Same as "National Complex"
Same as "National Complex"
S U
ERVICE NIT
G
ATEWAYS
60