Bosch Appliances D2071A Troubleshooting, Phone Line Trouble Buzzer, LED, and Relay Activated

D2071A Operations & Installation Guide 6.0 Troubleshooting

6.0Troubleshooting

To help prevent problems, read the preceding sections of this guide and confirm the control panel is correctly installed and programmed.

6.1Phone Line Trouble Buzzer, LED, and Relay Activated

The Phone Line Trouble and Failure to Communicate (communications failure) activate the Phone Line Trouble Buzzer, LED, and Relay.

6.2.1Phone Line Trouble

If the Phone Line Trouble Buzzer, LED, and Relay activate or a TROUBLE ZN B or TROUBLE ZN C is received:

1.Ensure the cords for both lines are correctly connected to the RJ31X or RJ38X jacks and the D2071A.

2.Ensure the RJ31X or RJ38X jacks are correctly wired. The incoming telephone line must be wired to Terminals 4 and 5. The in-house telephone system must be wired to Terminals 1 and 8.

3.Ensure all telephones are on hook and not on hold. Some telephone company systems automatically drop the voltage and current when telephones are left off hook for extended periods. Generally, placing the telephone on hook restores the telephone line.

If you perform Steps 1 through 3 and the telephone line is still not restored, meter the telephone line’s voltage and current. The telephone line should meter a minimum of 20 VDC when the D2071A is idle (on hook). If the voltage is below 20 VDC, meter for current. The telephone line must have a minimum current of 10 mA. If the readings are below the minimum values, contact your telephone company repair service.

6.2.2Communications Failure

Communications failure occurs after ten unsuccessful attempts to reach the receiver. Follow the procedure described in Section 6.2.1 Phone Line Trouble to confirm the telephone lines at the D2071A installation are working properly.

If the telephone lines are working, monitor them (preferably at the receiver) for one of the symptoms listed in Table 11.

Table 11: Communications Failures

Symptom		Solution
The line rings but the		•	Confirm the lines are
receiver does not			correctly connected to the
pick up.			receiver.
		• Confirm the correct prefixes
			and telephone numbers for
			the receiver are programmed
			into the D2071A.
The D2071A reaches	•		Confirm the correct prefixes
a busy signal for all			and telephone numbers for
ten attempts to reach			the receiver are programmed
the receiver.			into the D2071A.
	• The receiver’s call load might
			be too great. Additional
			telephone lines might be
			needed for the receiver.
	• Confirm the telephone lines
			are not shorted between the
			telephone company’s
			equipment and the receiver.
			Place a call to the number for
			the receiver. If you hear the
			line ring (but the ring
			detector does not light) or if
			you hear a busy signal and
			the green on line (OL)
			indicator is not lit, call the
			telephone company for
			service.
The receiver answers		Confirm the receiver is
the call and provides		producing a 2300 Hz
an acknowledgment		acknowledgment tone.
tone, but the
communicator does
not transmit its
reports.
The receiver answers	•		Confirm the receiver is
the call and provides			compatible with the format
an initial handshake			the D2071A is using (either
acknowledgment			BFSK or Superfast). Refer to
tone, but does not			the Transmit BFSK function
acknowledge the			in Section 4.0 Program
D2071A Report			Record Transmit on page
transmission with a			20.
kiss-off	• Noisy telephone lines can
acknowledgment			interfere with report
tone.			transmission. Try making a
			voice call on the line to
			confirm the noisy condition.
			You might need to have the
			telephone company check
			the lines.

2 4 Bosch 09/04 74-06200-000-F