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 |