Table 3.6 Electrical Characteristics Of The E1 Trunk Line; Table 3.7 Electrical Characteristics Of The Bri Trunk Line - Samsung OfficeServ 7400 General Description Manual

The signalling specifications and the signalling method of the T1 trunk line should com-
ply with the ITU G.703 and G.704 standards.
E1 Trunk Line
The electrical characteristics of the E1 trunk line comply with the ITU G.703 and the
G.704 standards.
Categories
Transmission speed
Code
Pulse type
Nominal and pulse
Jitter of the I/O terminal
Transmission media
Load resistance
Indicated (pulse) nominal peak voltage
Blank (non-pulse) peak voltage
The signalling specifications and the signalling method of the E1 trunk line comply with
the ITU G.703 and G.704 standards.
Characteristics of the ISDN Interface Transmission
The electrical characteristics of the ISDN (BRI) interface comply with the ITU I.430 and
ETS 300 012 standards.
Categories
Transmission speed
Code
Pulse type
Transmission media
Load resistance
Indicated (pulse) nominal peak voltage
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Table 3.6 Electrical Characteristics of the E1 Trunk Line

2048 kbit/s ±50 ppm
High Density Bipolar of Order 3 (HDB3)
Regular square wave: When indicating all valid signals,
comply with the mask (G.703) regardless of the codes.
244 ns
Refer to the G.823
A pair of twisted lines
120 Ω
3.00 V
0 ±0.300 V

Table 3.7 Electrical Characteristics of the BRI Trunk Line

192 kbit/s ±100 ppm
AMI
Regular square wave: When indicating all valid signals,
comply with the mask (I.403) regardless of the codes.
Pair of twisted lines
120 Ω
2.75 V
OfficeServ 7400 General Description
Specifications
Specifications
3-5