Alarm Relays On R1Bc; Alarm Relays On G4Ai; Alarm Relay On O4Le; Alarm Polling - ABB ETL600 Instruction Manual

Digital power line carrier system
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ETL600
9.3.8.3.2.

Alarm relays on R1BC

R1BC is an optional alarm relay board with 8 relays mounted on the
backplane of ETL600. Each relay has one switchover contact and is
controlled by one of the three alarms "User alarm 1", "User alarm 2" or
"User alarm 3" by inserting appropriate jumpers on R1BC. The user
alarms are individually configurable by means of HMI600 to any
combination of high-level alarms and warnings of the local and the
remote ETL600 terminal. As shown in Fig. 9-2, the high-level alarms of
the remote terminal are transmitted via EOC to the local terminal.
Pickup and hold times of the three user alarms can be configured by
HMI600 for each alarm independently.
9.3.8.3.3.

Alarm relays on G4AI

There are two relays on G4AI. A normally closed contact is available
for each relay by inserting appropriate jumpers on G4AI. HMI600
allows to individually select the alarm that controls each relay from the
following lists:
G4AI for TPE1:
- TPE1 alarm
- TPE1 hardware alarm
- TPE1 link alarm
- G4AI alarm
- User alarm 1
- User alarm 2
For the User alarms, refer to section 9.3.8.3.2.
The G4AI alarm (= G4AI hardware alarm OR G4AI interface alarm) is
detected on the module itself. The same pick up and hold times as for
the high level alarms are applicable for this output signal, refer to
section 9.3.7.2.
9.3.8.3.4.

Alarm relay on O4LE

The alarm relay on O4LE is called "PAX blocking", because its
intended use is to signal to a telephone exchange connected to O4LE
whether the telephone channel is available. Therefore, this relay is
controlled by the PLC link alarm of the APLC channel carrying the
telephony service.
9.3.9.

Alarm polling

The alarm polling facility of HMI600 allows to get a quick overview of
the alarm state of all terminals of an ETL600 element management
network. The alarms of all connected terminals are recorded in a PC
under control of the HMI600 program.
Once the list of devices to be polled has been entered, the alarm
polling for the network can be switched on and off with one single
keystroke. With alarm polling enabled, all devices on the list are polled
by HMI600 at specified intervals (daily, hourly, every xx minutes) and
Troubleshooting
1KHW001489-EN
G4AI for TPE2:
- TPE2 alarm
- TPE2 hardware alarm
- TPE2 link alarm
- G4AI alarm
- User alarm 1
- User alarm 2
November 2005
ABB Switzerland Ltd
9-11

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