ZIV SWT - I;O Connector

SWT
GIGABIT/FAST ETHERNET SWITCH TYPE SWT 29/137
USER GUIDE - M0SWTA1903Iv09 - V09 March 2019
2.8 I/O CONNECTOR
The I/O connector input and output are galvanically isolated, and can be managed via
SNMP. The pin-out and the main physical characteristics of the connector are indicated
below.
FIGURE 19 Location of the I/O connector
Pin
Use
1
Output -
2
Output +
3
Not connected
4
Input -
5
Input +
INPUT (pin 4 & 5)
OUTPUT (pin 1 & 2)
Input Inactive
In. Voltage < 8 Vdc
(between pins 4 & 5)
Output Active
Impedance <26 Ω
(between pins 1 & 2)
Input Active
In. Voltage > 10 Vdc
(between pins 4 & 5)
Output Inactive
Impedance> 500 MΩ
(between pins 1 & 2)
Max. voltage
250 Vdc
Protected against
overvoltages >270 Vdc
Max. voltage
250 Vdc
Protected against
overvoltages >270 Vdc
No Vac can be applied
Max. DC current draw
12 mA
Max. DC current
150 mA
Polarity
Pin 4 is the reference
for INPUT- and pin 5
for INPUT+
Protected against wrong
polarities
Polarity
Pin 1 connected to
OUTPUT-- and pin 2 to
OUTPUT+
Switching time ON/OFF
1 ms
Switching time
ON/OFF
2 ms