Siemens CC-2M Directions For Use Manual page 49

7XV5662-0AD00
Jumper E1, T1: Selection of transmission standards
Transmission speed
Standard
Accuracy
Coding
Impedance
Table 8 Jumper settings
The CC–2M has been designed for symmetrical transmission. If an unsymmetrical line with
an impedance of 75 Ω is to be connected, external adaptation (BALUN) is required.
Jumper ESF, D4: Selection of framings
This selection is only relevant if the T1 standard has been set.
Jumper setting ESF:
Jumper setting D4:
The following figure shows the jumper LINE CODE.
This selection is only relevant if the T1 standard has been set.
The jumper presetting is "B8ZS".
LINE CODE
B8ZS
AMI
Figure 25 Jumper LINE CODE
This jumper can be used to select the line coding in the T1 mode. If the E1 interface has been
selected, the line code HDB3 has been preset and this jumper will not be relevant.
C53000-B1174-C205-1
2.048 MBit/s
ITU–T G.703 (E12)
± 50 ppm
HDB3
120 Ω
Extended–Superframe–Format
Superframe–Format
E1
1.544 MBit/s
ITU–T G.703 (E11)
± 32 ppm
B8ZS/AMI
100 Ω
English
T1
49