RAD DATA COMMUNICATIONS
SRM-8H (RJ-11)
Card Type |
Short Range Modem |
Chip Set |
Unidentified |
I/O Options |
25-pin DTE port, RJ-11 connector, terminal block |
Wiring Type |
Unshielded twisted pair |
Maximum Data Rate |
64Kbps |
Data Bus |
External |
CONNECTIONS | ||||||
Function |
Label |
Function |
Label | |||
DTE serial port (25-pin connector) |
CN1 |
Terminal block |
CN3 | |||
RJ-11 connector |
CN2 |
USER CONFIGURABLE SETTINGS | ||
Setting |
Label |
Position |
í 64Kbps connection speed enabled |
SW2/4 |
Off |
56Kbps connection speed enabled |
SW2/4 |
On |
í Asynchronous stop bit shortening set to 25% |
SW2/5 |
Off |
Asynchronous stop bit shortening set to 12.5% |
SW2/5 |
On |
í Carrier forced high |
SW3/2 |
On |
Carrier follows RTS signal |
SW3/2 |
Off |
í DTE control of analog loop disabled |
SW3/3 |
Off |
DTE control of analog loop enabled |
SW3/3 |
On |
í DTE control of remote digital loop disabled |
SW3/4 |
Off |
DTE control of remote digital loop enabled |
SW3/4 |
On |
LOOPBACK TEST SELECTOR | |
Function |
SW1 |
Activates local analog loopback |
1 |
Normal operation. Loopback not activated |
2 |
Remote digital loopback initiated |
3 |
TRANSMIT CLOCK SOURCE | |||
Source |
SW2/1 |
SW2/2 |
SW2/3 |
í Transmit clock generated internally |
Off |
Off |
Off |
Transmit clock derived from receive line signal |
Off |
Off |
On |
Transmit clock derived from terminal interface |
On |
Off |
Off |
Asynchronous mode enabled |
Off |
On |
Off |
CHARACTER LENGTH (ASYNC MODE) | ||
Setting |
SW2/6 |
SW3/1 |
8 bits |
Off |
Off |
9 bits |
Off |
On |
í 10 bits |
On |
Off |
11 bits |
On |
On |
DIAGNOSTIC LED(S) | |||
LED |
Color |
Status |
Condition |
PWR |
Green |
On |
Power is on |
PWR |
Green |
Off |
Power is off |
TST |
Red |
On |
Device is conducting a loopback test |
TST |
Red |
Off |
Device is not conducting a loopback test |
CD |
Yellow |
On |
Carrier signal high |
CD |
Yellow |
Off |
Carrier signal low |
TD |
Yellow |
On |
Device is transmitting data |
TD |
Yellow |
Off |
Device is not transmitting data |