TP-Link DA-500F-HL CU 16.3. About Pin 7 of the Control/Monitor Terminals, 16.5. Connection Cable and Maximum Cable Length, 16.4. Terminal Pin Arrangement

16.3. About Pin 7 of the Control/Monitor Terminals

A ground common to all the control and monitor terminals is assigned to Pin 7.

Both Pins 7 of the Control/Monitor terminal for CH1 and CH2, and that for CH 3 and CH4 are internally

connected to each other.

Pins 7 are isolated from the unit body.

For the connection cable, use a Category 5 twisted pair cable for LAN (CAT5-UTP).

The maximum cable length is 600 m (656.17 yd).

• About operation and terminal status

• The same information is output from both Pins 8 (fan status output) of the CH1 and CH2 terminal, and the

CH3 and CH4 terminal.

• Lighting status of the protection indicator on the front panel matches operation of protection status provided

at the monitor terminal.

HI-LEVEL LO-LEVEL

Control terminal (input) 9 – 14 V DC 0 – 3 V DC

Monitor terminal (output) OFF ON

Protection indicator (front panel) Light off Light on

Protection status (output) OFF ON

Terminal Pin No. Pin name

Unit operation status

HI-LEVEL LO-LEVEL

CH1, 2 CH1 power ON/OFF control (input) CH1 power OFF CH1 power ON

CH1 protection status (output) CH1 normal CH1 protection activated (irregular)

CH1 power ON/OFF status (output) CH1 power OFF CH1 power ON

CH2 power ON/OFF control (input) CH2 power OFF CH2 power ON

CH2 protection status (output) CH2 normal CH2 protection activated (irregular)

CH2 power ON/OFF status (output) CH2 power OFF CH2 power ON

GND (input/output)

––

Fan operation status (output) Fan stop (irregular) Normal

CH3, 4 CH3 power ON/OFF control (input) CH3 power OFF CH3 power ON

CH3 protection status (output) CH3 normal CH3 protection activated (irregular)

CH3 power ON/OFF status (output) CH3 power OFF CH3 power ON

CH4 power ON/OFF control (input) CH4 power OFF CH4 power ON

CH4 protection status (output) CH4 normal CH4 protection activated (irregular)

CH4 power ON/OFF status (output) CH4 power OFF CH4 power ON

GND (input/output)

––

Fan operation status (output) Fan stop (irregular) Normal