Note that as of November 2016 the firmware now has Vicon PTZ protocol.
New Firmware Version
EXPRESS-8 29210.1.103503.96
EXPRESS-16 29310.1.103503.96
http://www.vicon-security.com/Software/HDExpress/ReleaseNotes_DVR-Express_firmware-103503.pdf
As of Oct. 27, 2015 - Please note the HDExpress and Express series products currently do not have a built Vicon PTZ driver. It is being worked on but for now you would have the following options.
1. Set the PTZ camera and Express to use one of the included protocols at the bottom of this page.
2. Use one of the following Vicon code translators or contact Sennetech directly at http://www.sennetech.net/converters.html
Vicon offers a series of code translators that provide a means of communication between Vicon equipment and other industry manufacturers.
Model PC Description
VCT-10ADV 5740-00 AD Manchester to Vicon RS-422
VCT-1024PTV 6429-00 Pelco RS-422 to Vicon RS-422
VCT-1003BTV 6418-00 Burle/Philips Bi-phase to Vicon RS-422
VCT-1037VTB 6322-00 Vicon RS-422 to Burle RS-422
VCT-11VAD 5741-00 Vicon RS-422 to AD Manchester
VCT-1028VTK 6430-00 Vicon RS-422 to Kalatel RS-422
VCT-1023VTM 6428-00 Vicon RS-422 to Motorola Pulse
VCT-1020VTP 6427-00 Vicon RS-422 to Pelco RS-422
VCT- 12VTB 5830-00 Vicon RS-422 to Burle/Philips Biphase
VCT-14VTS 6125-00 Vicon RS-422 to Sensormatic RS-422
VCT-RK 6164-00 Rack mount for code translators
Note if Vicon-Vicoax (up the coax) type control is needed. You would have to use the Pelco D protocol in the Express, and then convert it to Vicon protocol by using a converter model (VCT-1024PTV 6429-00 Pelco RS-422 to Vicon RS-422). Then connect that to V422-VI to convert to Vicoax protocol.
Current PTZ protocols included in the Express Series
interM
LPT-A100L
Takex
PTC-200
PTC-400c
WV-csr604
WV-cs850
MRX_1000
Multix
Spd_3300
Scc-643A
SCC-641
Ganz_PT_V3_2
Fastraxll_2
D-Max
Mesa-dome
Pelco-P
Pelco-D
Lilin