RAD DATA COMMUNICATIONS, INC.
SRM-8
Card Type |
Modem (synchronous/asynchronous) |
Chipset |
Unidentified |
Maximum Data Rate |
19.2Kbps |
Data Bus |
Serial |
Data Modulation |
Unidentified |
CONNECTIONS | |||
Function |
Label |
Function |
Label |
V.24 serial port |
CN1 |
Line out (see pinout below) |
SC1 |
SC1 PINOUT | |||
Function |
Screw |
Function |
Screw |
Receive line |
1 |
Transmit line |
4 |
Receive line |
2 |
Transmit line |
5 |
Ground |
3 |
USER CONFIGURABLE SETTINGS | ||
Setting |
Label |
Position |
í SW1 position 3 enters remote digital loopback test |
J1 |
Closed |
SW1 position 3 enters has no function |
J1 |
Open |
í Stop bit shortened by 12.5% in asynchronous mode |
SW3/1 |
Off |
Stop bit shortened by 25% in asynchronous mode |
SW3/1 |
On |
í CD signal forced high |
SW3/4 |
Off |
CD signal follows RTS |
SW3/4 |
On |
í Pin 18 of CN1 has no function |
SW3/5 |
Off |
Pin 18 of CN1 begins local analog loopback test |
SW3/5 |
On |
í Pin 21 of CN1 has no function |
SW3/6 |
Off |
Pin 21 of CN1 begins remote digital loopback test |
SW3/6 |
On |
CHARACTER LENGTH SELECTION | ||
Setting |
SW3/2 |
SW3/3 |
8 bits |
Off |
Off |
9 bits |
Off |
On |
í 10 bits |
On |
Off |
11 bits |
On |
On |
TEST MODE SELECTION | |
Setting |
SW1 |
Start local analog loopback test |
Position 1 |
í Normal operation |
Position 2 |
Start remote digital loopback test |
Position 3 |
LINE SPEED SELECTION | |
Setting |
SW2 |
1200bps |
Position 7 |
2400bps |
Position 6 |
3600bps |
Position 5 |
4800bps |
Position 4 |
7200bps |
Position 3 |
í 9600bps |
Position 2 |
14.4Kbps |
Position 1 |
19.2Kbps |
Position 0 |
RTS TO CTS DELAY SELECTION | |||
Setting |
J2/A |
J2/B |
J2/C |
0 mS |
Open |
Open |
Closed |
í 8 mS |
Open |
Closed |
Open |
64 mS |
Closed |
Open |
Open |
TRANSMIT CLOCK SOURCE SELECTION | ||||
Setting |
J3/A |
J3/B |
J3/C |
J3/D |
Asynchronous mode |
Closed |
Open |
Open |
Open |
Remote clock source |
Open |
Closed |
Open |
Open |
í Internal clock source |
Open |
Open |
Closed |
Open |
External clock source |
Open |
Open |
Open |
Closed |
DIAGNOSTIC LED(S) | |||
LED |
Color |
Status |
Condition |
LED |
Red |
On |
Modem is in test mode |
LED |
Red |
Off |
Modem is not in test mode |