Transtel group RTS-100-N3RU User Manual

Troubleshooting

Condition Actions

Neon lamp LP1
does not light up.

LP1 lights up but
diode DS1 does
not light up.

No dial tone.

Poor signal.

All rights reserved: TransTel Group, Inc.

1. Turn off power.

2. Check AC wiring.

3. Check power source.

4. Check fuse at F1.

5. Turn on power.

6. If wiring and power OK and LP1 does not
light up, call TransTel for further actions.

1. Turn off power.

2. Check connections J11 and J12 from
power supply to I/O board for tightness.

3. Turn on power.

4. If DS1 does not light up, call TransTel.

1. Check connection at J7 for correct
engagement and tightness.

2. Check connections J4 and J6 for
tightness.

3. If LED/switch of interface module is off,
gently press switch to turn module on.

4. If still no dial tone, call TransTel.

1. Check antenna connections.

2. Check antenna location and change if
necessary.

3. Replace omnidirectional antenna with Yagi
or other directional antenna.

Norcross, Georgia 30093

Tel.: [phone]
Fax: [phone]

Installation and Operation

TransTel RTS-100-N3RU

Installation

1. Record the telephone number assigned by the cellular carrier on the
instruction sheet attached to the inside of the RTS-100 door. The
ESN (electronic serial number) of the transceiver has already been
recorded at the factory.

2. Connect earth ground to the external chassis lug..

3. Connect antenna cable to TNC connector on outside bottom of

enclosure.

4. Connect 120 VAC wiring to terminal block J2 on bottom edge of

RTS I/O board. Use three wires labeled as follows:
Line (HOT; black or brown wire)

Neutral (white or blue wire)
Ground (green or green/yellow stripe wire).

5. Activate external AC source. Neon light LP1 comes ON, green LED

DS1 will light up, and the transceiver will be turned on. If LP1 does
not light, turn off power immediately and see troubleshooting section
for further instructions.

6. Make sure that the illuminated red LED/switch on the interface
module is on. If not, gently depress the switch to turn the light on. In
case of failure, contact TransTel.

7. Connect recorder/data input to J7. For voice calls, connect a standard
telephone or butt set to the same J7 jack.

8. Make a test call to verify cellular service.

9. If you cannot complete a call, dial 611 to make sure that cellular
service has been activated.

10. If you hear a hi/lo tone, check antenna connector, antenna cabling,

and antenna position.

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Antenna Alignment
The Test Mode feature of the RTS-100-N3RU is useful for

positioning the cellular antenna to achieve maximum signal strength.
A cellular handset must be plugged into J3 to do this.

1. Place unit in Test Mode by turning off power at the
handset, moving switch SW1 to "Test", and turning power
on again. The red LED/switch will light up.

2. Several sets of alternating numbers will be displayed on the
cellular handset. The last three digits of the six-digit
number indicate signal strength.

3. To check for proper antenna position, move the antenna
and check the readout. As the signal improves, the
numbers will increase.

4. When using a directional antenna, rotate the antenna in
15-degree increments, pause to allow the signal to stabilize,
and check the readout. After a full circle is completed, note
the optimum antenna position.

5. Power the unit down from the handset, move SW1 to
"Normal", mount the antenna, and power the RTS unit up
from the handset. The red LED/switch will light up.

Programming
The RTS is designed to be easily programmed in User Mode or Test

Mode provided a cellular handset is available. User-Mode
programming is described in the Motorola NAM programming
guide. To program the RTS in Test Mode, proceed as follows:

1. Connect any Motorola handset for Series III or Series IV
radios at J3 of the RTS I/O board. Power the unit down
from the handset, move SW1 to "Test", and power the unit
up again. The red LED/switch will light up.

2. To start the programming process, enter #55# on the
handset keypad. Follow the Motorola instructions for test
mode programming of Series III or Series IV transceivers.

Pressing * after the final programming step, will program
the transceiver.

3. Power the unit down from the handset, move SW1 to
"Normal", and power the RTS unit up again. The red
LED/switch will now light.

The RTS unit is now ready for operation

AutoSafe Power-up Circuit

The RTS-100-N3RU is equipped with the special AutoSafe power­up circuit that will energize the unit if power has been accidentally
turned off from the Motorola cellular handset, the red/LED switch,
or by a power failure. After approximately 30 seconds, the unit will
power up automatically.
The power-up circuit will not work if the RTS unit has been shut off
by the thermal shutoff protection circuit. This circuit will turn the
RTS-100-N3RU off if the temperature is below -40F or above
+140F. In this case the green LED DS1 will blink once per second.
When the temperature rises to -38F or drops to +138F, the unit will
be turned on again. The green LED will be on steady.

Operating the RTS-100-N3RU from a Battery
Use a suitable 12 VDC battery. Connect the battery at connector J5.

The green LED DS1 will blink in dim-bright mode. The red
LED/switch and the transceiver will be turned on at the same time.
Your RTS-100-N3RU is equipped with a circuit that monitors the
battery voltage to prevent sulfurization of the battery. When the
battery voltage drops below 10.5 volts, the cellular transceiver is
turned off after a few seconds.
To energize the RTS unit, you must apply 115 VAC at the J2
terminal block. Alternatively, disconnect the discharged battery and
connect a fully charged battery at J5. The RTS-100-N3RU will
power up as soon as 12 volts DC are applied

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