EST3 Installation and Service Manual

Service and troubleshooting

Signature data circuit (SDC) operation

The advanced features of the Signature controller module perform a number of advanced operations. These operations are not always apparent from the panel controller. Table 8-26 lists a number of SDC conditions and describes the circuit’s operation.

Table 8-26: SDC operation

Condition Operation

Remove a detector, then re-install the same detector in the same base.

1. The system displays a trouble with the detector’s label or address when the detector is removed.

2. The system restores completely when the detector is re-installed in its original base.

Remove a module or pull station, then re-install the same device in the same location.

1. The system displays a trouble with the module’s label or address when the device is disconnected.

2. The panel restores completely when the device is re-installed in its original location.

Remove a detector, then re-install a different detector of the same type in the same base.

1. The system displays a trouble with the detector’s label or address when the detector is removed

2. When the new detector is installed, the Signature controller module re-maps the circuit, replacing the S/N of the old detector with the S/N of the new detector. All the old detector’s sensitivity and verification settings are transferred to the new detector. The system will return to normal when mapping is finished.

Remove a module or pull station, then re-install a different device of the same type in the same location.

(SIGA-UM replacement modules must have jumper

JP1 set in the same position as the original module.)

Remove a detector, then re-install a different type detector in the same base.

1. The system displays a trouble with the device’s label or address when the device is disconnected.

2. When the new device is installed, the Signature controller module re-maps the circuit, replacing the S/N of the old device with the S/N of the new device. If the devices are modules (not pull stations), the old module’s personality codes are transferred to the new module. The panel will return to normal when mapping is finished.

1. The system displays a trouble with the detector’s label or address when the detector is removed.

2. When the new detector is installed, the Signature controller module re-maps the circuit, replacing the S/N of the old detector with the S/N of the new detector. All the old detector’s sensitivity and verification settings (when applicable) are transferred to the new detector. The new detector will be operational, however the panel will be in trouble, indicating a device type mismatch. The System

Definition Utility program must be used to re-assign the device type to get the system out of trouble.

EST3 Installation and Service Manual 8.35

Service and troubleshooting

Table 8-26: SDC operation

Condition Operation

Remove a module or pull station, then re-install a different type module or pull station in the same location.

1. The system displays a trouble at the device’s label or address when the device is removed.

2. When the new device is installed, the Signature controller module re-maps the circuit, replacing the S/N of the old device with the S/N of the new device. The new module is

NOT operational. The panel will be in trouble, indicating a device type mismatch. System Definition Utility program must be used to re-assign the device type to get the panel out of trouble.

3. If a single address module is replaced with a dual address module or vice versa, a map fault will be generated by the address count mismatch.

8.36 EST3 Installation and Service Manual