System information

FCD 901 48
Issue R2A, 07.2009
XMP1 Release 5.5 System Description
V.35 module
Page 9-24 Proprietary Information Aastra
Transmission with frame structure acc. to ITU-T V.110 synchr.
(full-duplex)
Synchronous (full-duplex)
Data rate
Synchronous (full-duplex)
600 bit/s
1200 bit/s
2400 bit/s
4800 bit/s as 8 kbit/s stream acc. to V.110
9600 bit/s as 16 kbit/s stream acc. to V.110
19200 bit/s as 32 kbit/s steam acc. to V.110
Transmission with frame structure acc. to ITU-T V.110 asynchr.
(transparent) with oversampling
Data rate
Asynchronous (transparent) with oversampling
0 to 1200 bit/s as 8 kbit/s stream acc. to V.110
(sampling rate: 4800 Hz)
up to 2400 bit/s as 16 kbit/s stream acc. to
V.110 (sampling rate: 9600 Hz)
up to 4800 bit/s as 32 kbit/s stream acc. to
V.110 (sampling rate: 19200 Hz)
up to 9600 bit/s as 64 kbit/s stream acc. to
V.110 (sampling rate: 48 kHz)
9.9.5 V.35 module
Interface data
Data and clock lines in compliance with ITU-T V.35
Control and signalling lines in compliance with ITU-T V.28
Number of interfaces per module 2
V.35 interface data
Voltages for clock lines and logic states of data lines
Logic "1"
 -0.55 V across R
L
=100 Ohms
Logic "0"
 +0.55 V across R
L
=100 Ohms
Electrical V.28 interface
Source voltage min. 5 V across R
L
=3 kOhms to GND
Short-circuit current max. ± 100 mA
Maximum line length 15 m
Voltages for control and signalling lines acc. to ITU V.28
OFF
 -3V
ON
 +3V
Asynchronous transmission
Data rate 0 to 19.2 kbit/s, transparent
Oversampling possible at 8 kHz, 16 kHz, 32 kHz and 64 kHz
Control signals only with 64 kHz sampling
Table 9.J: DSK Modular