BT NTU6 - Network Connection Testing; Full Circuit Operation Test (2.4-48 kbit;s)

Testing the connection from the network
If there is a problem with your KiloStream circuit, a BT engineer may ask
you to apply a loopback. This helps locate the fault by allowing BT to
test the connection from the network through the local end and the
NTU. To apply a loopback, follow the steps below:
Testing of the operation of the entire circuit
(national 2.4-48kbit/s circuits only)
To test the connection of the operation of the entire circuit, you need to
apply a remote loop. To do this, follow the steps below:
Operating guide
12
press to
Menu button rotate the LCD to ; after three seconds the LCD
changes to
(flashing)
up or down Scroll rotate the LCD to (flashing)
button
Toggle button freeze
Prog button apply a loopback (the red TM light will be illuminated and, after
one minute, the display changes to ); you can’t
send data to, or receive data from, the distant end
S: LOOP ACTIVE
T: LOOPBACK
T: LOOPBACK
T: LOCAL LOOP
TEST MENU
press to
Menu button rotate the LCD to ; after three seconds the
LCD changes to (flashing)
up or down Scroll button rotate the LCD to (flashing)
Toggle button freeze
Prog button apply a remote loop (the red TM light will be illuminated and,
after one minute, the display changes to );
you can’t send data to, or receive data from, the distant end
S: LOOP ACTIVE
T: REMOTE LOOP
T: REMOTE LOOP
T: LOCAL LOOP
TEST MENU