Operation Manual

52 GMC-I Messtechnik GmbH

Measurements R

– MΩ

ISO

@10 V/100 V – CAP Switch positions (a-b) (a-E) (b-E)

NTBA connected

If an NTBA is connected, measurement is not possible as the

input circuit of the NTBA prevents recognition

(influence value = –OL)

DSL modem active

If a DSL modem is active and the connector cable is very short

(< 500 m), an SM100 signature adapter must be plugged on in

oder to attenuate the DSL signals (handshake signals). The

SM100 adapter attenuates the acoustic handshake signals, thus

making measurement possible.

This adapter, however, must be removed from the instrument for

all other tests and measurements except for the capacitance

measurement with connected DSL modem/router described

above, see chapter 6.4.