User Manual
Table Of Contents
- Optical Master Unit
- Contact Information
- About This Manual
- For whom it is Intended
- Notice
- Confidential - Authorized Customer Use
- Disclaimer of Liability
- Warrantee
- Table of Contents
- 1 Introduction
- 2 Installation
- 3 Setup
- 3.1 Initiate Local Communication
- 3.2 Configure the OMU
- 3.3 Fiber Loss Compensation and Master Attentuation
- 3.4 Integration into AEM
- 3.5 Set Up OMU-Repeater System
- 3.6 Balance the System
- 3.7 Initiate Fiber Loss Compensation
- 3.8 Set up Remote Communication
- 3.9 Integrate into the AEM
- 3.10 Installation Examples
- 4 Troubleshooting
- 5 Maintenance
- 6 Specifications
OPTICAL MASTER UNIT
PRODUCT DESCRIPTION AND USER’S MANUAL
© Axell Wireless Ltd 37
AT&W
Saves the current modem configuration into NVRAM. This means that this configuration will be used
directly after modem power up
AT&F Loads the modem factory configuration
ATZ Resets the modem, and loads the default settings as saved with command AT&W
3.8.5.2 Trace Modem
For troubleshooting purposes it is possible to trace the actual progress of initializing the modem. This
trace is useful when having problems with the modem initialization.
Go to Terminal Mode and type
TRACE MODEM
To end session type CTRL-Z
3.8.5.3 Manually Answering Incoming Calls
It is possible to manually answer incoming calls without involving the OMU software at all, to verify
that the remote access and the network itself works as intended. In order to verify the remote
communication, make sure to have someone stand by to dial up the OMU with a terminal emulation
program, for example HyperTerminal™.
Go in to Direct Modem Access as described earlier. When in direct access mode, ask the person
standing by to dial up the OMU.
As soon as a call is received, the text
RING
will repeatedly be displayed on the screen.
Type
ATA <enter>
This will inform the modem to answer (ATtention Answer).
When the connection is established, a connect message will be displayed including the connection
speed. Sometimes the information comes together with some miscellaneous information, such as
error correction protocols etc.
Note! Make sure the remote peer dials the Data Call number
If the voice number is dialled instead of the data number, or if the modem contains an illegal modem
initialization string, the message
OK