Table 1.8 Electric Characteristics Of E1 C.o. Line; Table 1.9 Electric Characteristics Of Bri C.o. Line; Table 1.10 Electric Characteristics Of Pri C.o. Line - Samsung OFFICESERV 7100 Service Manual

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E1 C.O. Signaling
The electric characteristics of E1 C.O. line observes ITU G.703 and G.704 standards.
Category
Transfer Rate
Code
Pulse Type
Signal Standard, Signaling Method
Nominal Value and Pulse
Jitter of I/O Port
Transfer Media
Load Resistance
Display(Pulse) Nominal Peak Voltage
Blank(No-Pulse) Peak Voltage
ISDN Interface Transfer Signaling
The electric characteristics of ISDN(BRI) interface observes ITU I.430 and ETS 300 012
standards.
Category
Transfer Rate
Code
Pulse Type
Transfer Media
Load Resistance
Display(Pulse) nominal Peak Voltage
The electric characteristics of the ISDN(PRI) interface observes ITU I.431 and ETS 300
011 standards.
Category
Transfer Rate
Code
Pulse Type
Nominal and Pulse
1-10

Table 1.8 Electric Characteristics of E1 C.O. line

2048 kbit/s ± 50 ppm
HDB3(High Density Bipolar of Order 3)
In general, square wave: All effective signals are displayed
under mask(G. 703) regardless of their codes.
ITU G.703 and G.704 standards are satisfied
244 ns
ITU G.823 is satisfied
Twisted-pair line
120 Ω
3.00 V
0 ±0.300 V

Table 1.9 Electric Characteristics of BRI C.O. line

192 kbit/s ±100 ppm
AMI
Mask characteristics satisfy ITU I.403.
Twisted-pair line
120 Ω
2.75 V

Table 1.10 Electric Characteristics of PRI C.O. line

2048 kbits/s ± 50 ppm
HDB3(High Density Bipolar of Order 3)
The mask characteristics satisfies ITU I.403 standard.
244 ns
Description
Description
Description
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