Connections for the Moseley 20C2803 Single-port Serial Interface Assembly board. This adapter has been tested with an IBM PC and with a Motorola UDS 202 modem. (The later quad-serial board uses the pin-out of a 9-pin port on an IBM PC.)
Connections for the Moseley 20C2803 Single-port Serial Interface Assembly board. This adapter has been tested with an IBM PC and with a Motorola UDS 202 modem. (The later quad-serial board uses the pin-out of a 9-pin port on an IBM PC.)
The Moseley MRC-2 manual (table 5-2 on page 5-8 of a Rev. C manual) shows the following configuration for a Hayes Smartmodem 200:
Switch Setting Function S1-1 U DTR controlled S1-2 D Digit results (terse mode) S1-3 D Result codes sent S1-4 D No echo-full duplex S1-5 U Answer on first ring S1-6 D DCD always on S1-7 U RJ11 Jack S1-8 D Enable commands S1-9 U 103/212A compatible S1-10 U Hang-up command state
Communications parameters:
| System | Data Rate | Data Bits | Parity |
| MRC 1600 | 300 | 8 | Even |
| MRC 1620 | 1200 | 8 | None |
| MRC-1 | 1200 | 7 | Even |
| MRC-2 | 1200 | 7 | Even |
| MRC-2S | 1200 | 8 | None |
Links to more information:
