Ring Communications DNA200 - Manual (Page 24)

DNA200 OPERATIONS MANUAL 24 2008/05/01
VIDEOBLOX
PROTOCOL
This video switcher interface is used for systems with multiple Monitors and multiple Cameras.
The Network Address of the DNA200 is programmed for each Masterstation/DAD104 using a video monitor. This
programming is done in the DXC901, DXC910 or EX500. No configuration is required for the sub stations with
camera in the DXC901/DXC910/EX500.
The monitor address and camera address for each call number is programmed in the DNA200 (see Configura-
tion).
COMMUNICATION PROTOCOL
The device receiving from the DNA200 is setup in the following matter:
The interface is using RS232 with baud rate of 9600 bps (see S
ETTING
B
AUD
R
ATE
/D
EVICE
T
YPE
S
ELECT
earlier in this chapter).
8 Data bits, 1 stop bits and no parity (see Configuration),
Hardware flow control (RTS/CTS).
MESSAGE FORMAT
The message format is in the following sequence for output messages from the DNA200:
SWITCH ,
PTZRCL,
SWITCH .................Switch video input to output
PTZRCL ..................Recal PTC pre-position
Camera Address ......One, two, three or four characters ASCII number
, ..............................Parameter separator
Monitor Address .......One, two, three or four characters ASCII number
Preset Number .........One character ASCII number
......................Carrage return
Examples (based on programming exsample at the end of configuration section):
If master station 100(monitor 10) answers a call (on the DAD104) from sub station 105(camera 25) the following
message is sent from the DNA200: SWITCH 25,10
If master station 101(monitor 11) answers a call (on the DAD104) from sub station 106(camera 26) the following
message is sent from the DNA200: SWITCH 25,11
If master station 100 disconnects the DNA200 sends: SWITCH 0,10