RAD DATA COMMUNICATIONS
CMN-C8
|
Card Type |
Modem (synchronous/asynchronous) |
|
Chipset |
Unidentified |
|
Maximum Data Rate |
19.2Kbps |
|
Data Modulation |
Unidentified |
|
Data Bus |
Proprietary |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
Serial data port |
CN1 |
Loopback test switch |
SW4 |
|
Telephone line out |
CN2 | ||
|
USER CONFIGURABLE SETTINGS | ||
|
Setting |
Label |
Position |
|
í Front panel switch may initiate remote loopback test |
JP1 |
Pins 1 & 2 closed |
|
Front panel switch may not initiate remote loopback test |
JP1 |
Pins 3 & 4 closed |
|
í Stop bit shortening for asynchronous mode set to 12.5% |
SW1/1 |
Off |
|
Stop bit shortening for asynchronous mode set to 25% |
SW1/1 |
On |
|
í DCD forced high |
SW1/4 |
On |
|
DCD follows RTS |
SW1/4 |
Off |
|
í Pin 18 of CN1 has no function |
SW1/5 |
Off |
|
Pin 18 of CN1 begins local analog loopback test |
SW1/5 |
On |
|
í Pin 21 of CN1 has no function |
SW1/6 |
Off |
|
Pin 21 of CN1 begins remote digital loopback test |
SW1/6 |
On |
|
í CN1 is DCE |
SW3 |
Off |
|
CN1 is DTE |
SW3 |
On |
|
TRANSMIT CLOCK SOURCE SELECTION | ||||
|
Setting |
JP2/A |
JP2/B |
JP2/C |
JP2/D |
|
í Internal |
Closed |
Open |
Open |
Open |
|
External |
Open |
Closed |
Open |
Open |
|
Received |
Open |
Open |
Closed |
Open |
|
Asynchronous mode |
Open |
Open |
Open |
Closed |
|
RTS TO CTS DELAY SELECTION | |||
|
Setting |
JP3/A |
JP3/B |
JP3/C |
|
0 mS |
Closed |
Open |
Open |
|
8 mS |
Open |
Closed |
Open |
|
68 mS |
Open |
Open |
Closed |
|
DATA LENGTH SELECTION | ||
|
Setting |
SW1/2 |
SW1/3 |
|
8 bits |
Off |
Off |
|
9 bits |
Off |
On |
|
í 10 bits |
On |
Off |
|
11 bits |
On |
On |
|
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 |
|
DIAGNOSTIC LED(S) | |||
|
LED |
Color |
Status |
Condition |
|
PWR |
Green |
On |
Power is on |
|
PWR |
Green |
Off |
Power is off |
|
XMT |
Yellow |
On |
Modem is transmitting data |
|
XMT |
Yellow |
Off |
Modem is not transmitting data |
|
RCV |
Yellow |
On |
Modem is receiving data |
|
RCV |
Yellow |
Off |
Modem is not receiving data |
|
DCD |
Yellow |
On |
Carrier signal detected |
|
DCD |
Yellow |
Off |
Carrier signal not detected |
|
TST |
Red |
On |
Modem is in test mode |
|
TST |
Red |
Off |
Modem is not in test mode |
|
MISCELLANEOUS TECHNICAL NOTE |
|
This card is intended for use in the CMN-16 rack-mount system. The bus is used only for supplying power for the card. All other card functions are accessed through the serial port. |