Megger BERT-20E1, Руководство пользователя

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The receiver interface termination can be:
BERT-20E1 provides 75
Ω
unbalanced and 120
Ω
balanced transmit and
receive interfaces located at the top of the instrument.
75
Ω
RECEIVE Receiver input interface. Allows the connection of
75
Ω
unbalanced data signals.
75
Ω
TRANSMIT Transmitter output interface. Provides 75
Ω
unbalanced data output.
120
Ω
RECEIVE Receiver input interface. Allows the connection of
120
Ω
balanced data signals.
120
Ω
TRANSMIT Transmitter output interface. Provides 120
Ω
balanced data output.
EXT CLOCK IN Allows connection of a 75
Ω
timing reference as per
ITU-T G.811. The reference format may be either
clock or another E1 data data source
CONNECTING TO THE NETWORK
Terminated 0dB Gain.
Monitor 0dB Gain.
Monitor 12dB Gain – to
compensate for a low
level signal at
a network equipment
monitor point.
Monitor 30dB Gain – to
compensate for a low
level signal at
a network equipment
monitor point.
Bridged High impedance.
BERT_20E1_6172-871_UG_V02 05/05/2004 8:24 am Page 10