Guardian Telecom
Installation and Operation
DTR/DTT-VoIP Series Telephones
Page 14
9.3. Identifying the Connector Locations and Functions
See Figure 8 and Table 1 to identify the connector locations and functions.
Figure 8 - Connector Locations
Connector
Function
J1
PoE Network Connection (RJ-45)
J2
Hands free Microphone Interface/LED Interface
J3
Not used
J4
JTAG Interface
J5
Handset/Reed Switch Interface
J6
Speaker Interface
J7
Keypad Interface
J8
RS232 Port
J9
Terminal Block (see Figure 5)
J10
LCD Interface
J11
Handset V.C. Interface
J12
ISP-DIP/Debug UART
Table 1 - Connector Functions
