Ring Communications DNA200 - Manual (Page 18)

DNA200 OPERATIONS MANUAL 18 2008/05/01
AMERICAN DYNAMICS
STANDARD 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 or DXC910. No configuration is required for the sub stations with camera in
the DXC901/DXC910.
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 between the baud rates of 1200-19200 bps (see S
ETTING
B
AUD
R
ATE
/D
EVICE
T
YPE
S
ELECT
earlier in this chapter).
Data bits, stop bits and parity is programmable (see Configuration),
Hardware flow control (RTS/CTS).
Software flow control (X-ON/X-OFF).
MESSAGE FORMAT
The message format is in the following sequence for output messages from the DNA200:
<MONITOR ADDRESS>Ma<Camera Address>#a<LF><CR>
<PRESET NUMBER>\a<LF><CR>
MONITOR ADDRESS -One or two characters ASCII number.
M -Monitor select command.
a -Command separator.
Camera Address -One, two, three or four characters ASCII number
# -Camera select command
PRESET NUMBER -Preset number (1-99)
\ -Camera preset command
a -Command separator
<LF> -Line feed
<CR> -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: 10Ma25#a<LF><CR>
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: 11Ma26#a<LF><CR>
If master station 100 disconnects the DNA200 sends: 10Ma0#a<LF><CR>