Pub. 42004-520A
NEMA 4X VoIP Telephones
Page 8 of 15
P:\Standard IOMs - Current Release\42004 Instr. Manuals\42004-520A.docx
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I/O
Inputs
Four clean dry-contact auxiliary inputs have been provided for customer use. Terminations for these
inputs are provided on terminal block P12. Refer to Figure 7. Connect each input between the desired
input (
INPUT
1–4
) and common (
GND
) on terminal block P12. Refer to the “Inputs” section of GAI-
Tronics Pub. 42004-481, “VoIP Telephone Configuration Guide” for programming instructions for these
inputs.
Table 2. Auxiliary Inputs—Terminal Block P12
Pin Label
Function
1 IN4
Input
4
2 COM Common
3 IN3
Input
3
4 COM Common
5 IN2
Input
2
6 COM Common
7 IN1
Input
1
8 COM Common
Inputs have an internal pull-up resistor and need to be 3.3 V dc tolerant.
Outputs
Two outputs have been provided for customer use. Terminations for these outputs are provided on
connector
P2
on the relay PCBA. Refer to Figure 7.
The function of each output is configurable. Outputs can be configured for one of the following modes:
On, Off, Pulse, Mute, Ring, Call, Connect, Hook, In Use, Ring Cadence, Ring Out, Page, Registered, or
Emergency. In some modes, the duration of the activation or on/off times can also be set. Refer to the
“Logic Settings” section of Pub. 42004-481, “VoIP Telephone Configuration Guide” for more details.
Table 3. Output Contacts—Connector P2
Pin Label
Description
1
C2
Common Output 2
2
NO2
Normally Open Output 2
3
C1
Common Output 1
4
NO1
Normally Open Output 1
Relay capacity is 5 A at 30 V dc or 120 V ac.
