Back to Products List

HIGHWAYS MODEM

The Highway is an industrial grade V26 modem suitable for point to point and multidrop control applications. The robust modulation technique, used together with an extended temperature range makes it ideal for high integrity data links.

Transmitter/Receiver

Modulation
4 phase DPSK V26B @ 2400 bps
Carrier frequency 1800 Hz
Receive levels 0 to -43 dBm

Operation
2400 bps full duplex synchronous or asynchronous

Line Interface
4-wire 600 ohm

Data Input
Complies with CCITT V28

Data Output
Complies with CCITT V28 +/- 12 volts nominal

Synchronisation
Less than 15 mS

Link Settings

Carrier Constant or switched
Antistreaming off, 10 to 70 S in 10 S steps (switched carrier)
Output Level 0 to -15 dBm in 1 dB steps
Carrier Threshold -33 or -43 dBm (RX eq set to off)
RX Equaliser off, 4, 8 & 16 Km
RTS/CTS delay 0 to 75 S in 5 S steps
Mode Synchronous or Asynchronous
Character Length 8, 9, 10 & 11 bit (async)


Physical

Power
200 to 265 volts ac 47 to 63 Hz <(15 watts) (5 VDC volt option)

Temperature
-15 to +70 C

Dimensions
39 x 190 x 240 mm (h x w x d)

Power Cable
2m with moulded 13A mains plug

Line
2m with telephone plug type 631A

DTE Interface
RS232 V24 25-way

 

Back to Products List

Home - New Product News - Product Information - Technical Information - Application Drawings - Distributors - Contact Us