Vivotek FD816B-H(T) User Manual page 291

This channel will help to transfer the raw data of UART over the network.
Please see UART tunnel spec for detail information
PARAMETER VALUE
channel 0 ~ (n-1)
8.14 Event/Control HTTP Tunnel Channel
evctrlchannel > 0)
Note: This request requires
Method: GET and POST
Syntax:
http://<servername>/cgi-bin/admin/ctrlevent.cgi
-------------------------------------------------------------------------
GET /cgi-bin/admin/ctrlevent.cgi
x-sessioncookie: string[22]
accept: application/x-vvtk-tunnelled
pragma: no-cache
cache-control: no-cache
-------------------------------------------------------------------------
POST /cgi-bin/admin/ ctrlevent.cgi
x-sessioncookie: string[22]
content-type: application/x-vvtk-tunnelled
pragma : no-cache
cache-control : no-cache
content-length: 32767
expires: Sun, 9 Jam 1972 00:00:00 GMT
User must use GET and POST to establish two channels for downstream and upstream. The x-sessioncookie in GET
and POST should be the same to be recognized as a pair for one session. The contents of upstream should be
base64 encoded to be able to pass through the proxy server.
This channel will help perform real-time event subscription and notification as well as camera control more
efficiently. The event and control formats are described in another document.
See Event/control tunnel spec for detail information
DESCRIPTION
The channel number of UART.
Administrator privileges.
(capability.
User's Manual - 291
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