Westermo ID-90 - Manual (Page 121)

FAQ/Hints
Q: I entered DTR- or TX- Hotline mode and now I can’t get contact with the unit
anymore. What is wrong?
A: If the settings not are saved its only to set all switches to off (use settings saved in
database) and restart the unit. If settings are saved, switch in “AT command
mode” or if the remote msn “RMSN” is known then enter the unit remotely and set
the configurator to default values with “defa=0” and “defa=1” and “save”
Q: I set the “PRTY” command to even but the unit does not accept 8E1 (or any other
format with parity)?
A: When setting a another format than 8N1 its important to set all parameters related
to the speed and format.
Example of setting the speed and format 9600 8E1:
• Set the baudrate “AT**BR=4”
• Set the Databits “AT**DBITS=8”
• Set the Parity “AT**PRTY=1”
When using switches its also important to set all parameters related to format and
speed.
Q: The format 7N1 doesn’t work.
A: True, using 7 databits without parity is not supported.
Q: Why is there a problem to communicate with the unit, either directly when in con-
figurator mode or when in configurator mode via a remote connection, when using
a different data format than 8N1?
A: The configurator only supports 8N1.
121 6607-2204
V.42bis.
Data Compression technique used by modems rather than MNP5, because it offers better
compression on already compressed data.
V42bis
Standard for data compression.
V90
X.25
A packet-switching protocol defined by the CCITT, X.25 is designed to carry high vol-
umes of data with no errors. More specifically, X.25 defines the interface between user
data terminal equipment and the packet-switching network equipment.
X.75
Packet-switched signaling systems between public networks providing data transmission
services.