Description

Data-linc MDL500 Frequency shift key (FSK); carrier signal transformer and capacitively isolated Simple Type: Modem The Data Linc Group MDL500 Frequency Shift Key (FSK) series offers maximum versatility and reliability. With simplex, half-duplex and full-duplex capability, the MDL500 FSK series provides unsurpassed flexibility for private lines or any dedicated wire pair (twisted, untwisted,or unshielded) industrial application. Shielded wire is not recommended in longer range applications. The MDL500 incorporates a special filter section in the FSK receiver. This filter eliminates out-of-band electromagnetic interference (EMI). As a result, the MDL500 can utilize most untwisted and unshielded wires with error-free operation. When the MDL500 FSK modem is configured for multipoint operation, the carrier is controlled by the RTS line of the connected addressable device. The turn around time (RTS to send delay time) is only 20 milliseconds, permitting high system data throughout. The MDL500 has unique circuitry that stabilizes the received carrier rapidly and eliminates any false triggering by the Master’s receiver when any Remote’s transmitter is turned on or off. The MDL500 FSK series is factory pre-configured for simple installation. This series range is up to eight miles, based on 24-gauge wire. Larger wire gauges can increase range. The MDL500 FSK is ideal for applications where only dedicated twisted pair connect the locations requiring data transfer. It can also be used to communicate data over sliding contacts with high reliability, including slip rings and rolling wheels, as well as shoes on conductor bars. The MDL500, used with High Voltage Interface (HVI) and Power Line Isolators (PLI), permits full-duplex data transmission over in-use power lines at up to 9600 baud. Line voltage and current can be up to 600 volts Download the datasheet (PDF)