AUTOMATION & ELECTRONICS, INC.
WRAT
Wire/Radio Asynch Telecom. Bell 202 Modem: Specifications
Wire/Radio Asynch Telecom. Bell 202 Modem: Specifications
| Mechanical | Size: 5-1/2" x 2-3/8" x 1-1/2" PC daughter board |
| Modem | Bell 202 |
| Mark frequency: 1200 Hz | |
| Space frequency: 2200 Hz | |
| Modulation:Frequency shift key (FSK) | |
| Baud rate | 1200 bits/sec asynchronous half duplex |
| Interface | Data: RS-232 |
| Transmit output power | Mark: 0 dBm |
| Space: 3 dBm | |
| Transmit Output Voltage (based on 600 Ohm line) | Mark:.775 Vrms or 2.191 Vpp |
| Space: 1.094 Vrms or 3.095 Vpp | |
| Receive power sensitivity | -40 dBm to 10 dBm |
| Receive voltage sensitivity | 7.75 mVrms to 2.449 Vrms |
| Transmit lockout | After 12 seconds of continuous transmit |
| Surge withstand | Designed to meet or exceed IEEE 472.1974 surge test |