User`s manual

VPort 251 User’s Manual Introduction
General I/O Terminal Blocks
A 5-pin terminal block is located on the VPort 251’s top panel. The terminal blocks provide 1
digital inputs (DI), 1 relay outputs (Relay). The digital inputs and relay outputs are for linking to
peripheral devices, such as sensors and alarms. These I/O connections can be employed when
using the VPort 251 to create an intelligent alarm system for system operation (power failure,
video loss, disconnected network) or triggered event (VMD).
Normal Open
Common
Relay Output
Normal Close
Max. 1A, 24 VDC
Initial status is Normal Open
DI-
Digital Input
I+ DI+
“High”: +13V to +30V
“Low”: -30V to +3V
NOTE
T Please refer to the VPort 251’s Quick Installation Guide to learn how to wire the digital inputs
and relay outputs.
RS-232 Console Port
The VPort 251 has one RS-232 (10-pin RJ45) console port located on the top panel. Use either an
RJ45-to-DB9 cable or RJ45-to-DB25 cable to connect the VPort 251’s console port to your PC’s
COM port. You may then use a console terminal program, such as Moxa PComm Terminal
Emulator, to access the VPort 251’s console configuration utility.
Reset Button
A recessed RESET button is provided for rebooting and restoring the system to the factory default
settings. Use a pointed object, such as a straightened paper clip or toothpick, to press the reset
button.
1. Reboot:
To reboot the VPort 251, power it off and then power it back on again, or push the RESET button
one time. The STAT LED will light in red as the POST (Power On Self Test) process runs. When
the rebooting process is finished, the STAT LED will change to a green color.
2. Restore to Factory Settings:
To restore the VPort 251 to the factory default settings, press the reset button continuously until
the STAT LED blinks in red. At this point, wait until the STAT LED stop flashing, and then
release the reset button. The POST process will run, and the VPort will reboot. The STAT LED
will light in green when the VPort has finished rebooting.
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