Bosch Appliances D9112 installation manual Ground Start, Relay Installation

Phone Line Test Points		RADIONICS D9112
You can attach a telephone test set to	YEL		Operation Monitor	GRN
			Flickers When Ringing
			Pulses When Normal
the D9112 at the TELTEST points		Also Suitable for Supplementary and Supervisory Electrically Actuated Transmitter Use	Solid When Held In Reset		OPERATION
	RED	ALL TERMINALS EXCEPT #5 (BATTERY POSITIVE) POWER LIMITED	Disable All Except Battery
					MONITOR LED
		See 73-06143-000 for Compatible Smoke Detectors	Reset Pin
located above the TELCO jack on the			Charging And Local Programming		(GREEN)
	1		32
lower left corner of the panel. See
	2		31
Figure 7.	3	+	30
	4		29
	5		28
	6	+	27
Communication Failure	7	+	26
		JUMPER
		PHONE LINE
	8	+ MONITOR SELECT	25
	9	COMMON	24

After 10 attempts to reach the	LINETESTSNIFFER SELECTPOINTS
	10 EARTHPHONEGROUND		LINE								23
receiver, the panel goes into	Loop Start			PHONE LED
	MODEL No. D161
	Ground Start			(RED)
	TELCO CORD
communication failure. The			RED PHONE
	GROUND M		LED
			ON
panel clears any reports in its	START		OFF	11 12	13	14	15	16	17 18 19 20	21	22
	M
phone buffer. SERVC COMM	TELCO CORD	GROUND START
	CONNECTOR (J3)		RELAY (J5)
FAIL appears in the display at
command centers.				Figure 7: Telephone Connections

If you use the D128 Dual Phone Line

Switcher, the D9112 makes 10 attempts on each line before going into communication failure.

Pressing Command 4 silences the tone. When communication restores (a report is acknowledged by the receiver), the display clears automatically. See Phone Parameters in the D9112 Program Entry Guide (74-06145-000) for reporting options.

Ground Start

Some telephone systems require a momentary ground input to initiate dial tone. To interface with a ground start system, insert a plug-in relay (D136) into socket K6/J5 and set the ground start jumper in the GND START position. Terminal 10 must be connected to an earth ground reference.

Relay Installation

Power down the D9112 before inserting the D136 relay into socket K6/J5. The relay socket is in the lower left corner as shown in Figure 8. The plug-in relay is shorter than the socket it plugs into. You can install it in either the left or right end of the socket.

Don’t rely on relay labeling: You shouldn’t rely on the labelling to install D136 relays. Check for the side with three pins. The three pins go on the top

side.

Incorrect insertion does not damage the relay or the D9112, however the related circuits do not function properly. A ground start relay must not be inserted when dialing loop start.

GROUND START RELAY

M Aromat

DS2E-M-DC12V

Figure 8: Ground Start Relay

	D9112	Operation & Installation Manual
			© 1993 Radionics
74-06144-000-C 2/96		Page 29