Ascotel IntelliGate 2025/2045/2065
Part 4 Cabling interfaces 757
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-08ST ISDN
card.
A maximum of 3 (Ascotel IntelliGate 2025), 5 (Ascotel IntelliGate 2045) or 16
(Ascotel IntelliGate 2065) D channels are operated on each system.
[1] The interfaces must be configured accordingly (S/T)
[2] Connection in the PBX
Fig. 4.42: Configuration of the S/T interface for X.25 mode on the 2025 / 2045 mainboard (left)
and on the ISDN-04ST ISDN card (right)
For information on how to operate X.25 on the D channel, see "Data services",
page 353.
0.12 0.13 0.14
T
NT
S/T S
TA X.25-D
ISDN
4 4
[1]
[2]
haz1124aaena0
NTNT
ISDN
TA X.25-D
TA X.25-D
x.1 x.2 x.3 x.4
T
T
S
S
44 44
[1]
[2]
haz1125aaena0