User`s manual

VPort 2141 Video Encoder User’s Manual Introduction
1-5
RESTORE
If the system is responding or operating abnormally slowly, press and hold the “RESET” button
firmly to load the factory default settings. System diagnosis will begin immediately, and the
“SERIAL” LED will turn on after the system diagnosis finishes. Wait a little bit longer until the
“SERIAL” LED turns off, and then release the “RESET” button. Note that you can achieve the
same effect by clicking the “factory default” link on the configuration page.
2: BNC video inputs
You may attach 1, 2, 3, or 4 cameras to the VPort 2141. To ensure that the correct video
modulation type is detected, cameras should be connected sequentially from “VIDEO 1” to
“VIDEO 4” and powered on before the VPort is powered on.
ATTENTION
Although the analog cameras have 2 different standards, NTSC or PAL, all of the cameras
connected to a VPort 2141 should use the same standard.
3: Camera ID: VIDEO 1, VIDEO 2, VIDEO 3, VIDEO 4
Cameras connected to the VPort 2141 are identified by the port number.
4: 75 Ohm DIP Switch
There are four 75-Ohm DIP switches numbered from “1” to “4” on the front panel. The switches
are used to enable the 75-Ohm resistance video impedance. DIP switches should be turned to
the “ON” position if cameras are connected to the video inputs, and a video loop is not being
used. The switches should be turned to the “OFF” position for high impedance if a video loop is
required.
5: System LEDs: POWER, CONNECT, SERIAL
Each time the VPort 2141 video encoder starts up, a Power-On-Self-Test (POST) will be
performed to examine each hardware module. The VPort 2141 has 3 System LEDs:
a. POWER: power indicator.
b. CONNECT: checks to see if the VPort 2141 is alive.
c. SERIAL: checks to see if the RS-232/485 COM ports are in use.
As soon as the administrator plugs in the power connector, both the CONNECT and SERIAL
LED’s will flash, one by one, until the diagnosis is finished. If the result is good, these 2 LEDs
will turn off momentarily, and then follow the pattern shown in the table below. If any of the
modules fails, refer to the Power On Self Test in Chapter 7 for the error pattern, and then
follow the troubleshooting procedures. If the system still does not operate normally, please
contact your reseller for technical service.
Mode Condition
LED1
(POWER)
LED2
(CONNECT)
LED3
(SERIAL)
Before installation ON OFF OFF
After installation ON Flash OFF
Ethernet Connection
During camera
control
ON Flash Flash