System information

FCD 901 48
Issue R2A, 07.2009
XMP1 Release 5.5 System Description
MUX34 KX port
Aastra Proprietary Information Page 9-13
9.7.2.1 MUX34 KX port
General version to ITU-T G.703.8
Transmission bit rate (34,368
 2  10-5) kbit/s
Interface code HDB3
Transmit signal pulse shape bipolar, approx. rectangular
Impedance at F1in, F1out 75
, resistive
Interface level U
P0
1.0 V  10 % across 75 
Permissible exchange cable attenuation 0 to 12 dB, at 17,184 kHz
Reflection loss:
860 kHz to 1,720 kHz
12 dB
1,720 kHz to 34,368 kHz
18 dB
34,368 kHz to 51,550 kHz
14 dB
9.7.2.2 Interface, accessory for MUX34 port module
8 Mbit/s interface (F2 side)
Permissible line attenuation at F2in 6 dB at 1024 kHz
Interface to ITU-T, G.703.7
Code HDB3
Bit rate at F2out 8448 kbit/s
3 x 10
-5
Signal shape at F2out bipolar, approx. rectangle
Signal amplitude at F2out, U
p0
nominal 2.37 V across 75 
Impedance at input F2in 75 , resistive (unbalanced)
Permissible line attenuation at F2in 6 dB at 4224 kHz
2 Mbit/s interface (F2 side)
Transmit signal pulse shape bipolar, approx. rectangular
Interface to ITU-T, G.703.6
Code HDB3
Bit rate at F2out 2,048 kbit/s
5 x 10
-5
Signal shape at F2out bipolar, approx. rectangular
Signal amplitude at F2out, U
P0
nom. 3 V across 120 
Impedance at input F2in
120
, resistive (bal.) or 75  (unbal.),
switchable
Table 9.F: 34 Mbit/s interfaces