Vivotek IP2121 - Manual (Page 11)

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before installed OFF OFF
after installed flash OFF
Ethernet 10/100 socket
Connect to an Ethernet network with a UTP category 5 cable of length shorter than 100
meters according to the standard. Once the Ethernet cable is connected without error,
Network Camera will utilize the Ethernet interface prior to the modem attached to COM2.
COM port
This RS232 serial port can connect with a modem or included null modem cable to utilize
dial-up network when Ethernet is not available. If Network Camera operates with
Ethernet interface, administrators may use this port to control PT scanner attached to
VIDEO.
General I/O terminal block
1 Å DI+ INPUT (Max. 50mA, 12VDC)
2 Å DI- INPUT
3 Å SW_COMMON OUTPUT
(short with NC at initial state)
4 Å SW_NOPEN OUTPUT (Max. 1A, 24VDC or 0.5A, 125VAC)
5 Å RS485 B (inverting)
6 Å RS485 A (non-inverting)
Network Camera provides a very flexible general I/O interface to combine with the user’s
security devices such as sensors, alarms, lighting or door locks. The general I/O terminal
block has six pins for device control. These pins can be divided into two categories based
on their functions, including RS485 and digital input and output.
If the device connected to COM has an RS485 interface, wire two control lines to pin 5
and pin 6. After switching to RS485 on the configuration page, the PT scanner control
commands will be directed through pin 5 and pin 6. If the distance from the controlled