Table of Contents
Advertisement
DM240XR High-Speed Digital Modulator
Back Channel Test
The "BACK CHAN TEST" does the following:
1. Establishes a connection with the back channel server as defined under the
SYSTEM->BACK CHANNEL menu.
2. Issues a ping to the back channel server.
3. Sends a message to and validates the reply from the back channel server application
running on the back channel server.
4. If passes, no additional; events will appear in the event log.
5. If fails, logs one of the following events on the local side event log:
6. If fails, may log one of the following events on the server side event log:
Ethernet Test
Verify Local Router:
On the local unit, using the Front Panel display and arrow keys, scroll thru the Monitor
menu and clear the Event Log.
Now scroll thru the Test menu and Ping Test the TCP/IP ROUTER. If the event LED on
the front panel does not light, communications between the modem and its router was
successful.
Verify Remote Router:
Perform the same test on the remote unit as detailed under Verify Local Router.
Verify Local to Remote Connection:
On the local unit, using the Front Panel display and arrow keys, scroll thru the Monitor
menu and clear the Event Log.
Now scroll thru the Test menu and Ping Test the BK CHAN SERVER. If the event LED
on the front panel does not light, communications between the local modem and the
remote modem was successful.
MN-DM240XR– Revision 12
Figure 5. AutoEQ™ Backchannel Setup
a. "BACK CHANNEL TEST: FAILED PING"
b. "BACK CHANNEL TEST: FAILED BACK CHAN SERVICE REQ"
c. "BACK CHANNEL TEST: REPLY FORMAT ERROR"
d. "BACK CHANNEL TEST: ERROR REPLY"
a. "INVALID CHANNEL TEST SIZE"
b. "INVALID CHANNEL TEST PAYLOAD"
AutoEQ™ Interface Operation Guide
D–9
Advertisement
Table of Contents
