Bosch Appliances D9412GV2 manual 7.11.3Installing the D928 Mounting

D9412GV2/D7412GV2 Operation and Installation Guide 7.0 Telephone Connections

7.11.3Installing the D928 Mounting

Mount the D928 on the lower right side of the enclosure using the screws provided with the switcher.

Wiring

The D928 has two flying leads. The green lead monitors AC power. The black lead is the ground reference for the AC Power LED.

1.Connect the green lead from the D928 to Terminal 1.

2.Connect the black lead from the D928 to Terminal 9.

Telephone Connections

1.Plug one end of the ribbon cable provided into J4 on the control panel. Plug the other end of the ribbon cable into the ACCESSORY connector on the control panel.

2.Plug one end of the D162 phone cord provided into the telco jack. Plug the other end of the phone cord into the telco jack on the control panel. Refer to Error! Reference source not found. for phone cord lengths.

Table 9: Phone Cord Lengths

Phone Cord	Length
D161	2.4 m (8 ft)
D162	61 cm (2 ft)

3.Plug one end of a D161 or D162 phone cord into J1 on the control panel. Plug the other end of the phone cord into the RJ31X or RJ138X for the primary telephone line.

4.Plug one end of a D161 or D162 phone cord into J2 on the control panel. Plug the other end of the phone cord into the RJ31X or RJ138X for the secondary telephone line. Refer to Error! Reference source not found. for phone cord lengths.

If you installed a D928 before November 19, 2001 on a D9412GV2 or D7412GV2, disconnect AC power from the control panel (battery must remain connected) and observe the green LED.

If this LED glows dimly, contact Customer Service at (800)289-0096 for a replacement module at no charge.

7.11.4 D928 Status LEDs

Four LEDs mounted on the front edge of the D928 Module show the status of AC power for the control panel, the status of the two telephone lines, and communication failure (Figure 11 on page 33). When programmed and operating normally, only the green AC power status LED is lit.

AC Power LED

The green AC Power Status LED lights when AC power is applied to Terminals 1 and 2 on the control panel.

Phone Line Fail LEDs

Two yellow Phone Line Status LEDs (one for the primary telephone line, one for the secondary telephone line) light if the voltage on the telephone line falls to between 5.0 and 7.0 VDC, without the corresponding current of 13 mA. The control panel monitors the faulty telephone line for the programmed interval before indicating a trouble condition. Refer to Section 7.8 Telephone Line Monitor on page 28 for a description of phone line monitor operation.

Communication Failure LED

The yellow Communication Failure LED lights when the system is in communication failure. The LED turns off when communication restores. Refer to Section 7.10 Communication Failure on page 28.

30 Bosch Security Systems, Inc. 5/05 F01U003641B