Owner manual

Data Sheet

4 DAV

Date:

21.04.2010

Page:

4/5

Author:

Document-No.:

DB_4DAV_ 2302_02

Line card for 4 digital stations in 2 wire technique

The Symbols on the Front Panel and their Meaning:

The System Blinker

Addressing from processor taking place

I/O Input/Output

BUS output works as push-push operation with the system blinker

BUS input works as push-pull operation with the system blinker

Sending/Receiving (depending on the set)

LED lit: 4DAV sending to subscriber

LED blinking: 4DAV receiving from subscriber

LED blinking slowly: modem connection disrupted

Fuses (depending on set)

LED on: Both fuses OK

LED flashing 1x: 2-wire fuse (front panel) defect

LED flashing 2x: 4-wire fuse (circuit board) defect

LED flashing 3x: Both fuses defect