User's Manual

Table Of Contents

EX7100 Technical Manual - Configuring the Terminal

Sync Data Polarity.

When using the synchronous data interface (e.g. V.35), the polarity of the clock signals

may become critical to the successful interfacing of EX7100 to external devices. Many

V.35 devices, especially those manufactured in North America, may have their clock

and/or data signals inverted. For this reason, EX7100 allows the user to select either

normal or inverted clock signals.

1) From idle, press ‘Enter’

Use the arrow keys to enter the First Level

password ‘1111’ and then press ‘Enter’.

2) Use the up and down arrow keys to make

sure the → is next to Framer.

Press ‘Enter’.

3) Use the up and down arrow keys to make

sure the → is next to Tx Data Clock.

Press ‘Enter’.

4) Use the up and down arrows to select the

sync data interface.

Press ‘Enter’.

5) Use the up and down arrow keys to make

sure the → is next to Tx Polarity or Rx

Polarity (as required)

Press ‘Enter’.

6) Select the polarity required. Press ‘Enter’.

Note: Some V.35 devices also require that the Data signals be inverted. This may be

achieved by simply swapping the (+) and (-) legs of the Tx Data and/or Rx Data

connections.

Password ∗ ∗ 1 ∗

↑

Rf parameters

→framer

Interface

→Tx Data Clock

G.703

→Sync data

Clock source

→tx polarity

→normal

inverted