User`s manual
VIVOTEK
156 - User's Manual
Bit 8 => Invalidate bit 1 ~ 7; 
0(bit 1 ~ 7 are valid), 
1(bit 1 ~ 7 are invalid) 
Bit 9 => Reserved bit; Invalidate 
lens_pan, Lens_tilt, lens_zoon, 
lens_focus, len_iris. 
0(fields are valid), 
1(fields are invalid) 
windowless  <boolean>  1  0/7  Indicate whether to support 
windowless plug-in. 
eptz  0, <positive integer>  1  0/7  A 32-bit integer, each bit can be set 
separately as follows: 
Bit 0 => stream 1 supports ePTZ or 
not. 
Bit 1 => stream 2 supports ePTZ or 
not. 
The rest may be deduced by 
analogy
npreset  0, <positive integer>  20  0/7  Number of preset locations. 
protocol_https  < boolean >  1  0/7  Indicate whether to support HTTP 
over SSL. 
protocol_rtsp  < boolean >  1  0/7  Indicate whether to support RTSP. 
protocol_sip  <boolean>  0  0/7  Indicate whether to support SIP. 
protocol_maxco
nnection
<positive integer>  10  0/7  The maximum allowed 
simultaneous connections. 
protocol_maxge
nconnection 
<positive integer>  10  0/7  The maximum general streaming 
connections . 
protocol_maxm
egaconnection
<positive integer>  10  0/7  The maximum megapixel streaming 
connections. 
protocol_rtp_mu
lticast_
scalable 
<boolean>  1  0/7  Indicate whether to support scalable 
multicast. 
protocol_rtp_mu
lticast_
backchannel
<boolean>  0  0/7  Indicate whether to support 
backchannel multicast. 
protocol_rtp_tcp  <boolean>  1  0/7  Indicate whether to support RTP 
over TCP. 
protocol_rtp_htt <boolean>  1  0/7  Indicate whether to support RTP 










