Bosch Appliances D2071A manual Telephone Connections

D2071A Operations & Installation Guide 2.0 Installation

Restoral ZN 9 Exceptions: If a battery is not connected to the D2071A when AC power is connected, the control panel sends a RESTORAL ZN 9 Report to the receiver.

A RESTORAL ZN 9 is also sent after the programmer disconnects from the D2071A.

Charging Circuit

The D2071A charges the battery with a float charge circuit using a maximum charging current of 300 mA. The battery discharge and recharge schedule (Table 5) shows voltages during the discharge and recharge cycles.

Table 5: 12 VDC Battery Discharge and Recharge Schedule

Discharge Cycle

13.8 V	FACP battery float voltage
11.8 V		Battery Trouble Report (TROUBLE ZN 9)
8.5 V	Disables all processing and memory functions.
		Deep battery discharge can occur below this
		level.
Recharge Cycle
AC on		Battery recharging begins
9.0 V		Battery Trouble Report (only if the battery is
		discharged below 8.5 V)
13.4 V		Battery Restoral Report (RESTORAL ZN 9)
13.8 V		Battery charged
Notes:

1.The source supervised is the battery connected to the D2071A.

2.Actual voltage can vary ±15.

2.7.212 VAC Battery Discharge and Recharge Schedule

Refer to Table 5 for the 2 VAC battery discharge and recharge schedule.

2.8Telephone Connections

2.8.1Telephone Cord Installation

Use a D161 or D162 Phone Cord to connect the primary telephone line to the D2071A Modular Jack ( J1). Use a second D161 or D162 Phone Cord to connect the alternate telephone line to the D2071A Modular Jack

( J2).

For all applications, you must connect separate primary and alternate telephone lines to the D2071A.

2.8.2Location

To prevent the jamming of alarm and other reports, wire and locate the RJ31X or RJ38X jack so normal telephone use is temporarily interrupted while the

communicator transmits data (Figure 8). After installation, confirm the D2071A seizes the line, acquires dial tone, and correctly reports to the receiver.

Figure 8:		RJ31X Wiring
		2		3
1	R1			4
		1
		2
		3		R
		4
				T
		5
		6
	T1	7
		8
1 -	Premises phone		3 -	Full modular phone jack
2 -	RJ31X Module		4 -	Incoming Telco line

2.8.3Telephone Line Supervision

The D2071A monitors both the primary and alternate telephone lines while the communicator is idle by sniffing the line for trouble. Telephone line trouble is line voltage below 10 VDC with a current less than

10 mA. If there is a report waiting to be transmitted, the D2071A does not sniff the telephone lines until the report is transmitted or a communication failure occurs. The D2071A reports a faulted condition on the primary telephone line as a TROUBLE ZN B and the alternate telephone line as a TROUBLE ZONE C.

Each line is sniffed once a minute if both lines are good. If a line is determined to be in trouble, the D2071A steps up the test rate and sniffs once every 10 sec. If the trouble still exists after 15 samples (150 sec), the control panel sends a Trouble Report and activates the buzzer, Phone Fail LED, and Phone Line Trouble Relay (if installed). Refer to Section 2.5 Phone Line Trouble Relay on page 13 for installation instructions.

The buzzer, LED, and relay deactivate after a trouble condition on the telephone line when the receiver acknowledges the Phone Line Trouble Report, or when the line returns to normal. If the D2071A attempts to transmit the Phone Line Trouble Report ten times without acknowledgment from the receiver, a communication failure occurs.

If the D2071A is in communication failure, either the primary and alternate telephone lines must be detected as normal and a report acknowledged by the receiver before the buzzer, LED, and relay deactivate.

Bosch 09/04 74-06200-000-F 1 5