Data Interface Alarms - ABB ETL600 Instruction Manual

ABB Switzerland Ltd
HMI600 Alarm Text
• MOD600
synchronization
failed
• NSK600 modem 1
low SNR
• NSK600 modem 2
low SNR
• NSK600 modem 3
low SNR
• NSK600 modem 4
low SNR
• MUX600 frame
synchronization
failure
9.6.2.3.

Data interface alarms

HMI600 Alarm Text
• V.24 port 1 data
jabber halt
• V.24 port 2 data
jabber halt
• V.24 port 3 data
jabber halt
• V.24 port 4 data
jabber halt
• V.24 port 5 data
jabber halt
• V.24 port 6 data
jabber halt
9-24
1KHW001489-EN
Explanation and corrective actions
(the latter in italics)
MOD600 data transmission is stopped because the local
MOD600 receiver can't synchronize to the signal arriving
from the remote MOD600 Tx.
Make sure that
- the MOD600 settings of both link terminals match,
- the received signal quality in terms of SNR is at least
as high as required for the configured MOD600 gross
data rate.
- one link terminal has the MOD600 operational mode
set to 'Master', the other to 'Slave',
- the status of the remote MOD600 is 'On' (Configuration
/ MOD600 / Signal settings / Status)..
The SNR measured by the NSK600 modem 1/2/3/4 Rx is
inadequate for data
performance.
MUX600 has lost frame synchronization. All data channels
handled by MUX600 are interrupted. Reasons can be:
- MOD600 data transmission is interrupted,
- High BER for MOD600 data transmission.
Explanation and corrective actions
(the latter in italics)
The external data terminal connected to V.24 port
1/2/3/4/5/6 has been transmitting data into the port
continuously for more than 100 s. The respective data port
has been blocked.
To bring the port back to normal operation, either
- Stop the external data terminal such that it generates
no more data, if flow control (Configuration / data port
assignment / Port) is set to 'Data Sensitive'.
- Deactivate the RTS handshake line of the respective
port, if flow control (Configuration / data port
assignment / Port) is set to 'RTS / CTS & DCD'.
- Disable jabber timeout.
November 2005
transmission with
Troubleshooting
ETL600
reasonable