Barnett Engineering ProTalk Plus B1290, Руководство по эксплуатации, Страница: 69 / 82

- Check that the B1290 is configured to answer the phone, using Program
Code 4. If the number of rings before answering is set to 0, the B1290 will
never answer the phone.
- Answering the telephone will not occur if the B1290 is engaged in any of
these activities: speaking on the radio, in local programming mode and
when it is using the phone line to call out. Counting of rings only begins
once the unit is in its idle state.
- Check that the ringing voltage on the telephone line exceeds 40 VAC at 20
Hz. The RING LED located on the front panel will indicate if proper ring-
ing voltage is being received.
- Check that the telephone line has a standard ringing cadence of two sec-
onds on, four seconds off. If the ringing cadence is greatly different, it may
not be detected.
Problem: The B1290 will not acknowledge.
- Check that you are sending the correct digits. The acknowledge code can
be changed using Program Code 3.
- If the B1290 is not acknowledging over radio, it may be necessary to adjust
the receive level setting for the radio port.
- If the B1290 is not acknowledging over the telephone line, it may be neces-
sary to adjust the receive level setting for the phone port.
- Check that the TONE LED on the front panel of the B1290 lights when a
DTMF digit is received.
Problem: The B1290 does not activate its relay when I send the
DTMF On code.
- Check that you are sending the right digits. The relay On/Off codes can
be changed by using Program Code 3.
- Check the relay On time using Program Code 5. If the setting is 0, the relay
will stay On until it is commanded Off. For any other setting, the relay will
only operate for the programmed number of seconds.
- If the relays do not operate from codes sent over the radio, it may be neces-
sary to adjust the receive level setting for the radio port.
- If the relays do not operate from codes sent over the telephone, it may be
necessary to adjust the receive level setting for the phone port.
- Check that the TONE LED on the front panel of the B1290 lights when a
digit is received.
68 Troubleshooting