Pub. 42004-470G
Clean Phone
®
VoIP Telephones
Page 10 of 15
P:\Standard IOMs - Current Release\42004 Instr. Manuals\42004-470G.docx
05/19
Power
Power-Over-Ethernet
Connect power to the system as indicated in the PoE equipment manual.
Local Power
A separate, isolated 24–48 V dc power supply is required when PoE is not available. Connect the local
power supply to the telephone at the removable terminal block,
P5
. Connect the positive conductor to the
(
+
) terminal and the negative conductor to the (
−
) terminal of
P5
(see Figure 9).
Table 2. Power—P5
Pin
Label
Description
1
(+)
Positive
2
(−)
Negative
Ground
The enclosure must be connected to earth ground. Install a #6 ring lug on the ground conductor and
secure it with the ground terminal located on the rear of the front panel.
Network
Connect a Cat5 or Cat5e cable with an RJ45 connector between the LAN (Local Area Network) and the
VoIP PCBA.
I/O
Inputs
Four auxiliary inputs are provided for customer use. Terminations for these inputs are located on terminal
block
P12
(see Table 3 and Figure 9).
Table 3. Auxiliary Inputs—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
