ProTalk Plus B1290, Installation & Operation Manual

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TROUBLESHOOTING PAGE 47
field wiring, one option is to “debounce” the alarms using the B1290 alarm delay parameter using Program Code 5.
When this value is set, contacts must be closed for a specific period of time before they are recognized as alarms.
- Check if any new alarms are announced when the B1290 continues to dial after it has been acknowledged.
Sometimes alarms at a remote site are related, occurring in a chain reaction from a single cause. The B1290 will
start dialing when it receives the first alarm, but if another alarm occurs in the meantime, it will keep dialing until all
the alarms are acknowledged.
Problem: The B1290 won’t answer the phone.
- Check that the phone line is plugged into the PHONE jack and not the PGM jack.
- Check that the phone line is using the inner red/green pair, and not the outer black/yellow pair (normally reserved
for line 2).
- 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 ringing voltage is being received.
- Check that the telephone line has a standard ringing cadence of two seconds 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 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 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 necessary 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.
Problem: Our operators live in an area which has a dial pulse exchange. How can they
acknowledge the B1290 when it calls?
- Even though the operators have rotary phones, they can still send tone codes if they have a DTMF pad, purchased
separately, which sits by the phone.
- The B1290 may be programmed to automatically acknowledge after eight rings. Thus if the B1290 calls an
operator with a dial pulse phone, the operator can hang up after he hears the message, call the B1290 right back, let
the phone ring eight times, and the B1290 will recognize that as an acknowledgment. Set the number of rings before
answering to # in the Configuration section (Program Code 4), and put a Wait command in the next directory line to
allow time for them to call the B1290 back.