RAD DATA COMMUNICATIONS
CMN-C8H/V.24, CMN-C8H/V.35, CMN-C8H/X.21, CMN-C8H/530
|
Card Type |
Modem (synchronous/asynchronous) |
|
Chipset |
Unidentified |
|
Data Rate |
56Kbps/64Kbps |
|
Data Modulation |
Unidentified |
|
Data Bus |
Serial |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
V.24, V.35, X.21, or RS-530 serial port via DB-25 connector |
CN1 |
Unidentified |
CN3 |
|
Telephone line out |
CN2 |
Loopback test switch |
SW6 |
Note: Standard V.35 or X.21 connector is provided on an included adapter cable. | |||
|
USER CONFIGURABLE SETTINGS | ||
|
Setting |
Label |
Position |
|
í Line speed set to 64Kbps |
SW1/4 |
Off |
|
Line speed set to 56Kbps |
SW1/4 |
On |
|
í Stop bit shortening for asynchronous mode set to 25% |
SW1/5 |
Off |
|
Stop bit shortening for asynchronous mode set to 12.5% |
SW1/5 |
On |
|
í DCD forced high |
SW2/2 |
On |
|
DCD follows RTS |
SW2/2 |
Off |
|
í Pin 18 of CN1 has no function |
SW2/3 |
Off |
|
Pin 18 of CN1 begins local analog loopback test |
SW2/3 |
On |
|
í Pin 21 of CN1 has no function |
SW2/4 |
Off |
|
Pin 21 of CN1 begins remote digital loopback test |
SW2/4 |
On |
|
CLOCK SOURCE SELECTION | |||
|
Setting |
SW1/1 |
SW1/2 |
SW1/3 |
|
í Internal clock source |
Off |
Off |
Off |
|
External clock source |
On |
Off |
Off |
|
Received clock source |
Off |
Off |
On |
|
Asynchronous mode |
Off |
On |
Off |
|
DATA LENGTH SELECTION | ||
|
Setting |
SW1/6 |
SW2/1 |
|
8 bits |
Off |
Off |
|
9 bits |
Off |
On |
|
í 10 bits |
On |
Off |
|
11 bits |
On |
On |
|
SERIAL PORT CONFIGURATION | |||
|
Setting |
SW3 |
SW4 |
SW5 |
|
í DCE |
On |
On |
On |
|
DTE |
Off |
Off |
Off |
|
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. |