9990
3
2
Changing the battery or line-cord (UTS-E is supplied with a
battery installed)
The LED in the centre of the keypad will light when the battery needs replacing as shown
below.
To remove the cover, remove the two screws shown below to get to the battery. A suitable
replacement battery is RS stock no. 591-792
To replace the line cord, remove the cover as shown above.
9990
Memory dialling
Press MEM then the chosen location (1-9 or 0).
Dialling pauses
Insert 4 second delays in dialling string by keying LNR/PAUSE after any digit. Dialling
pauses will be repeated by LNR and can be stored in memory.
Off-hook (talk)
Press this button to seize the line. Press again or disconnect the line-cord to go on-hook.
High impedance monitor
Press this button momentarily to monitor the line. Monitor will stay on while connected to
the line and will time-out around 1 minute after disconnection.
Mute (Tx cut-off)
Press this button to cut-off transmission for privacy or to eliminate sidetone in noisy areas.
Release to talk.
Polarity test/ground start operation
To test polarity connect to the line to be tested. Press the polarity, POL, button and
observe the LEDs (see figure 1).
Red LED = Red line cord connection to tip (+ve)
Green LED = Red line cord connection to ring (-ve)
For ground start operation: Connect to line and identify the tip (+ve) wire. Connect a
ground to tip wire. Press TALK and then remove ground connection.
Figure 3
Figure 4
Battery low indication
A. Screws (2)
B. Remove as shown
Figure 2.
A. Black wire = tip or +ve terminal
B. Red wire = ring or -ve terminal
C. Cord restraint (if fitted) connect to C
Figure 5.
