RAD DATA COMMUNICATIONS, INC.
RME MODEM ELIMINATOR
| Card Type | Modem eliminator (synchronous) |
| Chipset | Unidentified |
| Maximum Data Rate | 19.2Kbps |
| Data Bus | Serial |
CONNECTIONS |
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Function |
Label |
Function |
Label |
| Serial port 1 | CN1 |
AC power in | CN3 |
| Serial port 2 | CN2 |
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USER CONFIGURABLE SETTINGS |
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Setting |
Label |
Position |
|
| » | DCD of serial port 1 forced high | J5 |
Pins 2 & 3 closed |
| DCD of serial port 1 controlled by RTS of serial port 2 | J5 |
Pins 1 & 2 closed |
|
| » | DCD of serial port 2 forced high | J6 |
Pins 2 & 3 closed |
| DCD of serial port 2 controlled by RTS of serial port 1 | J6 |
Pins 1 & 2 closed |
|
| » | Pin 18 of serial
port 1 does not cause serial port 1 input to be looped back |
J7 |
Pins 1 & 2 closed |
| Pin 18 of serial port 1 causes serial port 1 input to be looped back | J7 |
Pins 2 & 3 closed |
|
| » | Pin 18 of serial
port 2 does not cause serial port 2 input to be looped back |
J8 |
Pins 1 & 2 closed |
| Pin 18 of serial port 2 causes serial port 2 input to be looped back | J8 |
Pins 2 & 3 closed |
|
| » | Signal ground connected to chassis ground | J9 |
Pins 1 & 2 closed |
| Signal ground not connected to chassis ground | J9 |
Pins 2 & 3 closed |
|
LOOPBACK TEST MODE CONFIGURATION |
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Setting |
SW1 |
|
| » | Normal operation |
Position 2 |
Serial port 1 input looped back |
Position 1 |
|
Serial port 2 input looped back |
Position 3 |
|
SERIAL PORT SPEED SELECTION |
|
Setting |
SW2 |
900bps |
Position 9 |
1200bps |
Position 8 |
1800bps |
Position 7 |
2400bps |
Position 6 |
3600bps |
Position 5 |
4800bps |
Position 4 |
7200bps |
Position 3 |
9600bps |
Position 2 |
14.4Kbps |
Position 1 |
19.2Kbps |
Position 0 |
CLOCK SOURCE SELECTION |
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Setting |
J2/A |
J2/B |
J2/C |
|
| » | Internal |
Closed |
Open |
Open |
Serial port 1 |
Open |
Open |
Closed |
|
Serial port 2 |
Open |
Closed |
Open |
|
SERIAL PORT 1 RTS TO CTS DELAY SELECTION |
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Setting |
J3/A |
J3/B |
J3/C |
0 mS |
Closed |
Open |
Open |
8 mS |
Open |
Closed |
Open |
70 mS |
Open |
Open |
Closed |
SERIAL PORT 2 RTS TO CTS DELAY SELECTION |
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Setting |
J4/A |
J4/B |
J4/C |
0 mS |
Closed |
Open |
Open |
8 mS |
Open |
Closed |
Open |
70 mS |
Open |
Open |
Closed |
DIAGNOSTIC LED(S) |
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LED |
Color |
Status |
Condition |
PWR |
Green |
On |
Power is on |
PWR |
Green |
Off |
Power is off |
TD1 |
Yellow |
Blinking |
Serial port 1 is transmitting data |
TD1 |
Yellow |
Off |
Serial port 1 is not transmitting data |
RD1 |
Yellow |
Blinking |
Serial port 1 is receiving data |
RD1 |
Yellow |
Off |
Serial port 1 is not receiving data |
TD2 |
Yellow |
Blinking |
Serial port 2 is transmitting data |
TD2 |
Yellow |
Off |
Serial port 2 is not transmitting data |
RD2 |
Yellow |
Blinking |
Serial port 2 is receiving data |
RD2 |
Yellow |
Off |
Serial port 2 is not receiving data |
TEST |
Red |
On |
Device is in loopback test mode |
TEST |
Red |
Off |
Device is not in loopback test mode |