Operating instructions

Digital Telephone Hybrid

General Device Commands

Get Device Name - Causes the TH3 to send its “name” string back. The first data byte is the length of the name

string, and the rest of the data bytes are the device name.

Host sends command - 1

Host receives data bytes: Byte 1 is the length of the name string (3 for the TH3), bytes 2 thru 4 are the ASCII values

for “TH3”.

Set Device Address - Changes the TH3’s device address. The new setting persists when the TH3 is powered off.

Even when the TH3 is restored to factory settings, the device address is not changed.

Host sends command - 2

Host sends 1 byte representing the new device address, 128-254.

Restore Factory Settings - Causes the TH3 to revert to its original factory settings. All settings are affected with the

exception of the LecNet device address. This may be changed only by issuing the Set Device Address

command, above.

Host sends command - 3

Get Firmware Version - Causes the TH3 to send to the host the version number of the current firmware (times ten).

For example, Version 1.0 software would be returned as byte value 10 (decimal).

Host sends command - 25

Host receives data byte: firmware version.

Basic Operation Commands

Set Phone Connect - Causes the TH3 to connect or disconnect the telephone interface.

Host sends command - 30

Host sends byte: 0 to disconnect, 1 to connect

Get Phone Connect - Retrieves connect status of telephone interface.

Host sends command - 31

Host receives data byte: 0 if disconnected, 1 if connected

Set Phone Privacy - Engages or disengages telephone privacy feature. This command has no effect if the

telephone interface is not connected.

Host sends command - 32

Host sends byte: 0 to disengage privacy feature, 1 to engage

Get Phone Privacy - Retrieves privacy status of telephone interface.

Host sends command - 33

Host receives data byte: 0 if disengaged, 1 if engaged

Set Codec Connect - Causes the TH3 to connect or disconnect the codec interface.

Host sends command - 34

Host sends byte: 0 to disconnect, 1 to connect

Get Codec Connect - Retrieves connect status of codec interface.

Host sends command - 35

Host receives data byte: 0 if disconnected, 1 if connected

Rio Rancho, NM – USA