BOSCH - VP-RS2BLNX SERIAL TO BLINX CONVERTER @0

Power: 12-28 VAC (50/60 Hz) and 12-40 VDC (polarity independent). Galvanically insulated from video, RS-232 ground and casing.
Speed ;
RS-485: 9600 baud
RS-232: 9600 or 4800 baud selectable
Video connectors: BNC connections, passive loop through, high impedance, Video input 1 Vpp nominal, 2 Vpp max.
Protocol: The serial protocol is described in the Serial Protocol Description. This document is available upon request from Bosch Security Systems.
Dimensions(L x W x H): 88.5x100x28 mm (3.38x3.94x1.1 inch)
Temperature range ;    
Operating/storage: -20 °C to +50 °C (-4 °F to 122 °F)
Min.: Typ. , Max. , Unit
Power supply input voltage AC: 10.8 , - , 28 , V
Power supply input voltage DC: 10.8 , - , 40 , V
Power consumption: - , 1.3 , 2 , W
RS-232 ;
Input voltage operating range: -24 , - , 24 , V
Input logic threshold LOW: 0.8 , 1.2 , - , V
Input logic threshold HIGH: - , 1.7 , 2.4 , V
Input hysteresis: 0.2 , 0.5 , 1 , V
Input resistance: 3 , 5 , 7 , Kohm
Output voltage swing(with 3 kOhm load): -7.8 , - , 7.8 , V
Output resistance: 400 , - , - , ohm
Data rate: 4.8 , 9.6 , - , Kbits/s
RS-485 ;
Input voltage operating range: -7 , 12 , V
Differential input logic threshold LOW: - , -0.2 , - , V
Differential input logic threshold HIGH: - , 0.2 , - , V
Differential input hysteresis: - , 70 , - , mV
Input resistance: 24 , - , - , Kohm
Differential output (no load): - , - , 5 , V
Common-mode output (load = 50 ohm): - , - , 3 , V
Data rate: - , 9.6 , - , Kbit/s