DLS 400E3 Operating Manual
Page 6-6 - Spirent Communications
7104000537 03/04 -2
1) transmit “*SRE 48”
enable MAV and ESB (needed only once)
2) transmit “*ESE 60”
enable all the error bits (needed only once)
3) transmit “*IDN?”
query the identification message
4) wait for SRQ to be raised
5) read the status byte
use the IEEE 488.1 serial poll command, not *STB?
6) if MAV (bit 4) is set read the response
7) if ESB (bit 5) is set do the followingcheck if an error was detected
8) transmit “*ESR?”
query the Event Status Register
9) wait for SRQ to be raised
7) if MAV (bit 4) is set read the response and take all relevant action according to the error type
received
If desired, all the enable registers can be restored on power up with the *PSC command.
6.2.2
Example using the RS–232 Interface
The DLS 400E3 is sa lot -based configuration. To set a specific slot, do the following:
1) transmit “:SET:SLOT 1, 50 METERS,INLINE”
2) check that the REMOTE LED is green
To send and receive messages with error checking follow these steps:
1) set all relevant enable bits (only done once)
2) send the message
3) read the answer until you receive LF (decimal 10, hex 0A)
4) check if an error occurred with the command *ESR?
For example, to get the identification message with the RS–232 interface, do the following:
1) transmit “*ESE 60”
enable all the error bits (needed only once)
2) transmit “*IDN?”
query the identification message
3) read the answer
the messages are always terminated with LF
4) transmit “*ESR?”
check if an error occurred
5) read the answer
if not 0, see section 8.1 for description of the error(s)
6.3
Wireline Simulator Bypass
Sets the DLS 400E3 in bypass mode.
setting:channel:bypass
<boolean>
Choices: NO,YES
For example, to bypass the DLS 400E3, send:
:SET:CHAN:BYPASS YES
To query the current bypass status, send:
:SET:CHAN:BYPASS?
The command returns either "NO" or "YES".
Summary of Contents for DLS 400E3
Page 1: ...Operating Manual DLS 400E3 ADSL European Wireline Simulator Revision 2 March 2004...
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