RS UTS-3 Manual

RS stock no. 801-538
Issued March 1998 9989
UTS-3 All Weather
Telephone Test Set
Instruction Leaflet
It is important to take the following precautions when using your UTS-3 all weather tele-
phone.This way it gives you a long and trouble free life.
1. Don’t - dismantle your UTS, its sealed for life.
2. Don’t - force it underwater, its waterproof not submersible.
3 Don’t - use is as a hammer.
4. Don’t - swing it by its cord.
5. Don’t - use cheap zinc carbon batteries, they leak and they let you down when its
cold.
If you keep it clean it will be more pleasant to use. First brush-off any loose dirt. Avoid
brushing dirt into the apertures.Wipe the surface to remove greasy residues. Use mild
solvents or detergents, don’t use high pressure cleaning jets or force the UTS under-
water. Cable cleaning wipes are ideal. If you drop it into deep water it will float - just
shake water out of the apertures and you’re ready to go - no damage,no repair. Remove
any burrs on the case with a sharp knife or sandpaper. Replace your line cord if it looks
worn - before it lets you down, it’s quick and easy.
Dialling
UTS automatically selects tone dialling when connected to a line.
Pulse/Dialling selection
Connect to line then press PULSE before you go off-hook (idle or monitor mode).You can
switch to tone dialling part way through a call by pressing * (not dialled out).The dialling
mode will revert to tone when returning to idle mode or if the line is discontinued for 1 sec-
ond.
2
ABC
5
JKL
8
TUV
0
OPER
1
4
GHI
7
PRS
3
DEF
6
MNO
9
WXY
#
Batt low
PULSE
LNR/PAUSE
FLASH
MEM STO POL
SPKR VOL
Figure 1 Polarity LED
Hands-free
microphone
MODE LED
Red = Talk
Green = Monitor
AC
B
A. Black wire = Tip or +ve terminal
B. Red wire = Ring or -ve terminal
E.Third wire (if fitted)
E
Figure 5
RS Components shall not be liable for any liability or loss of any nature (howsoever caused and whether or not due
to RS Components’negligence) which may result from the use of any information provided in RS technical literature.
RS Components, PO Box 99, Corby, Northants, NN17 9RS Telephone: [phone]
An Electrocomponents Company © RS Components 1998

Hook switch
Monitor line before pressing TALK. PressTALK to go off-hook.To go on hook, press TALK
again or MONITOR.
High impedance monitor
Press this to turn Monitor on and off.Monitor will stay on while connected to line and will
time-out one minute after disconnection.
MUTE (Tx CUT -OFF)
Press this button to cut-off transmission for privacy or to eliminate sidetone in noisy
areas. Press again to talk.
Loudspeaker facility
Press SPKR to switch on. Press again to switch off. If SPKR is pressed in idle mode, then
the unit will switch automatically to loudspeaker Monitor mode.PressVOL to boost level,
press again to reduce.In Talk mode 2-way hands-free speech is selected when the loud-
speaker is on.This provides the user with maximum freedom while using the telephone.
Pressing MUTE will disable transmission,this can be useful when using the UTS in a noisy
environment, for certain tests and when you require loudspeaker listening.
Remember: Press MUTE again when you wish to speak. The loudspeaker will switch
off automatically after about one minute if the UTS is not connected to a
powered line, to conserve the battery
Changing the battery or line-cord
21 3
Batt low
PULSE
LNR/PAUSE
FLASH
MEM STO POL
SPKR VOL
9V Alkaline
AAB
Figure 3
Program a memory
Go off-hook,press STO,enter the telephone number then press MEM, choose and press
location (1-9 or 0).
Memory dialling
Press MEM then the chosen location (1-9 or 0).
Last number redial
Press LNR/PAUSE (first action).
Flash
Press FLASH.
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.
Using hands-free effectively
UTS-3 does not clip the beginning of words,it switches silently and it adapts to the ambi-
ent noise level - so there is no need for adjustment. For best results stay close to the
microphone (at the bottom of the keypad) and use volume boost only if the level is too
low. Use UTS-3 with the mike and loudspeaker facing you.
Note: Continuous sounds from the line will be silenced after a short period so when
dialling, dial tone may be heard only briefly.
Polarity test/ground-start operation
To test polarity, connect to the line to be tested. Press the polarity, POL, button and
observe the LED’s (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 you must first conduct a polarity test to identify the tip wire of
the UTS line-cord, connect to line then connect a temporary wire from the Tip to ground.
Press TALK and listen for dial-tone.When dial-tone is heard, disconnect the ground wire.
Dial as normal.
MONITOR
TALK
MUTE
A. Screw
B. Remove cover
as shown
Figure 2 Figure 4 Polarity LED MODE LED
Red = Talk
Green = Monitor
This LED flashes when the battery needs replacing