System information

FCD 901 48
Issue R2A, 07.2009
XMP1 Release 5.5 System Description
DSK Modular
Aastra Proprietary Information Page 9-21
Table 9.J: DSK Modular
9.9 DSK Modular
Basic board for equipment with four modules (appropriate for V.24, V.11, V.35, WT and G.703
modules)
9.9.1 Mechanical dimensions
DSK-Modular basic board 170 mm x 256 mm
V.11, V.24, V.35, G.703 and WT modules 125 mm x 55 mm
9.9.2 Immunity of interface lines to noise (indoor application)
Standards EN 50082, ETS 300 386-2
Transient, low-energy pulse groups (bursts)
Bursts on DC power supply lines 500 V
Bursts on indoor control and data lines
500 V
Transient, high-energy pulses of a 1.2/50s and 10/700s shape
Voltage pulses on DC power supply lines 500 V
9.9.3 V.11 module
Interface data
Standards EN 50082, ETS 300 386-2
Interface definition in compliance with ITU-T X.21
Electrical features in compliance with ITU-T V.11 or X.27
Number of interfaces on the module 2
Electrical V.11 interface
Transmitter
Output impedance
 50 Ohms
Output short-circuit current
 150 mA
Output voltage with log. "1" or OFF, idle run 3.5 V
 U  5.0 V
Receiver
Input impedance, switchable 150 Ohms, 600 Ohms and approx. 5 kOhms
Input differential voltage
 300 mV
Assignment of line conditions
Line Voltage U (a) -> U (b):
Control and clock line status
 -0.3 V corresponds to "OFF" condition
Data line status
 -0.3 V corresponds to "1"
Control and clock line status
 -0.3 V corresponds to "ON" condition
Data line status
 + 0.3 V corresponds to "0"