X.25 Connection In The D Channel - ASCOM Ascotel 2025 System Manual

7.3.1.6

X.25 Connection in the D Channel

The appropriate terminal adapters with S interface are required to be able to
transmit X.25 data through the PBX to the public ISDN network via the D channel,
for example from a PC via V.24.
X.25 D channel terminal adapters are connected to the S interfaces of the 2025 /
2045 mainboard or to the S interfaces of the ISDN-04ST ISDN card.
A maximum of 3 (Ascotel 2025), 5 (Ascotel 2045) or 16 (Ascotel 2065) D channels
are operated on each system.
[2]
T
0.12
4
NT
ISDN
[1] The interfaces must be configured accordingly (S/T)
[2] Connection in the PBX
Fig. 4.34: Configuration of the S/T interface for X. 25 mode on the 2025 / 2045 main-
board (left) and on the ISDN-04ST ISDN card (right)
For information on how to operate X.25 on the D channel, see Part 2, Chapter
"Data Services".
HBT_20321104_04/B0_en
[1]
S/T S
0.13 0.14
4
haz1124aadea0
TA X.25-D
ascom Ascotel 2025/2045/2065
[2]
T
T
x.1 x.2 x.3 x.4
4 4 4
NT NT TA X.25-D
ISDN
Cabling Interfaces
[1]
S S
4
haz1125aadea0
TA X.25-D
4.43