Installation guide

BBV_1-2-1 _Protocol_converter_manual_V41_November_2013 Page 29 / 40
Philips RS232/485 (bi-phase via LTC8780/50) (adjust SW3 to suit input protocol)
Bi-phase telemetry is a proprietary twisted pair protocol that allows several domes to be daisy chained. A
Philips LTC8780/50 1-2-1 converter is required in addition to the 1-2-1 converter when driving bi-phase
telemetry.
Later domes with RS485 inputs can be driven directly from the 1-2-1 converter outputs without the need for
a Philips LTC8780/50 1-2-1 converter as shown below.
Set the dome address using the rotary switches to match the number of the camera input of the TX1500.
Ensure that any dome at the end of a daisy chained RS485 run has the RS485 terminated and the
intermediate domes have the RS485 de-terminated.
If the dome only supports FastAddress™, a Philips controller must be used to set the dome address before
installation. The 1-2-1 converter will not set the FastAddress ™.
Dome Function TX1500 Procedure Molynx
Pelco &
Mark Mercer
Procedure
SET/SAVE PRESET (1-64) PROGRAM NUMBER PRESET
SHOW/GOTO PRESET (1-64) NUMBER PRESET
DISPLAY DOME MENU (AUX 46 ON) 1 #
Cam on then Prog preset 1 Go to Preset 61
PROGRAM ZONE TITLE (AUX 63 ON) 2 #
Cam on then Prog preset 2 Go to Preset 62
AUTOPLAY RECORD (AUX 100
ON/OFF)
3 # to start recording followed by
either 3 # or AUTOPAN to stop
recording.
Cam on then Prog preset 3 Go to Preset 63
DISPLAY SOFTWARE VERSION
(AUX 66 ON)
4 # TWO times
Cam on then Prog preset 4 Go to Preset 64
RESET DOME (SET 899)
4 # FOUR times
(This will erase all preset
positions and load default dome
settings – use with care!)
Cam on then Prog preset 4
Go to Preset 64
Not supported in
Mark Mercer
START DOME PRESET TOUR (AUX 8
ON)
1 PATROL
Cam on then Goto preset 5 Go to Preset 66
START AUTOPLAY PLAYBACK (AUX
50 ON)
AUTOPAN
Cam on then Goto Preset 7 Go to Preset 68
DISPLAY PRESET TOUR MENU (SET
900)
PROGRAM 99 PRESET
Cam on then Prog preset 9 Program 99 Preset
DISPLAY PRESET TOUR PERIOD
(AUX 15 ON)
PROGRAM 98 PRESET
Cam on then Prog preset 8 Program 98 Preset
DISPLAY PRESET MENU (SET
100)
PROGRAM 97 PRESET Cam on then Prog preset 7 Program 97 Preset
BROWN / WHITE GREEN GREEN / WHITE ORANGE BROWN BLUE / WHITE BLUE ORANGE / WHITE
SW4
Depending on the exact model type, Philips domes can be controlled using RS232
or RS485 and bi-phase telemetry.