Technical data

4 Operation

ARGUS 3u plus /3u NT

Connectors on the end:

• 9 V-

Connection for the external power supply. When the

power supply is plugged into this connector, the

rechargeable batteries will be disconnected.

After it is switched off, the ARGUS will automatically

recharge the accumulators(s. Seite 133 Accu servicing).

Telephony

- Pickup or hang up

- Simplified overlap signalling: Press

the telephone key twice.

Layer 1 Measurement:

start the Layer 1 measurement

(Level/Voltage)

Number Pad:

- Entry of the digits 0....9 and of the

special characters *, # (e.g. the call number or

numerical entry in a function)

- Direct function call

(see Seite 25)

Softkeys:

The function of the 3 softkeys varies with the

situation.

The current function of each softkey is shown in

the highlighted fourth line of the display.