RAD DATA COMMUNICATIONS
ASM-31
|
Modem Type |
Data (synchronous/asynchronous) |
|
Maximum Data Rate |
128Kbps |
|
Data Bus |
External |
|
Data Modulation Protocol |
Proprietary |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
V.24, V.35, X.21, RS-530 |
CN1 |
Diagnostic test switch |
DIG |
|
AC power |
CN2 |
Analog loopback switch |
ANA |
|
Ground |
GND |
Remote loopback switch |
REM |
|
Receive |
RCV |
Test pattern |
PATT |
|
Transmit |
XMT |
Reset switch |
RESET |
|
ANALOG LOOPBACK | |
| Setting |
JP2 |
| Enabled |
Pins 2 & 3 closed |
| Disabled |
Pins 1 & 2 closed |
|
ASYNC TO SYNC | |
| Setting |
SW1/S1 |
| Synchronous |
On |
| Asynchronous |
Off |
|
BAUD RATE | |
| Setting |
SW7 |
| 600bps |
0 |
| 1200bps |
1 |
| 2400bps |
2 |
| 4800bps |
3 |
| 9600bps |
4 |
| 19.2Kbps |
5 |
| 38.4Kbps |
6 |
| 48Kbps |
7 |
| 64Kbps |
9 |
| 128Kbps |
A |
| 57.6Kbps |
C |
| 115.2Kbps |
D |
|
BIT | |
| Setting |
SW1/S2 |
| 8 bit |
On |
| 7 bit |
Off |
|
CD SIGNAL | |
| Setting |
SW1/S6 |
| CD forced high |
On |
| CD normal |
Off |
|
CHASSIS TO SIGNAL GROUND | |
| Setting |
JP4 |
| Connected |
Pins 1 & 2 closed |
| Disconnected |
Pins 2 & 3 closed |
|
CLOCK SOURCE | |||
| Setting |
JP1/A |
JP1/B |
JP1/C |
| Loopback |
Closed |
Open |
Open |
| Internal |
Open |
Closed |
Open |
| External |
Open |
Open |
Closed |
|
DSR/DTR | |
| Setting |
SW1/S7 |
| Power ON |
On |
| DSR follows DTR |
Off |
|
PARITY - ON/OFF | |
| Setting |
SW1/S3 |
| Enabled |
On |
| Disabled |
Off |
|
PARITY - EVEN/ODD | |
| Setting |
SW1/S4 |
| Even |
On |
| Odd |
Off |
|
REMOTE LOOPBACK | |
| Setting |
JP3 |
| Enabled |
Pins 2 & 3 closed |
| Disabled |
Pins 1 & 2 closed |
|
STOP BIT | |
| Setting |
SW1/S5 |
| 1 stop bit |
On |
| 2 stop bit |
Off |
|
DIAGNOSTIC LED(S) | |||
|
LED |
Color |
Status |
Condition |
|
PWR |
Green |
On |
Power is on |
|
PWR |
Green |
Off |
Power is off |
|
RTS |
Yellow |
On |
Request to Send enabled |
|
RTS |
Yellow |
Off |
Request to Send disabled |
|
TD |
Yellow |
On |
Modem is transmitting steady SPACE |
|
TD |
Yellow |
Off |
Modem is not transmitting data |
|
TD |
Yellow |
Blinking |
Modem is transmitting data |
|
RD |
Yellow |
On |
Modem is receiving steady SPACE |
|
RD |
Yellow |
Off |
Modem is not receiving data |
|
RD |
Yellow |
Blinking |
Modem is receiving data |
|
DCD |
Yellow |
On |
Carrier signal detected |
|
DCD |
Yellow |
Off |
Carrier signal not detected |
|
LOS |
Red |
On |
Loss of synchronization |
|
LOS |
Red |
Off |
Synchronization OK |
|
ERR |
Red |
On |
Errors in test pattern |
|
ERR |
Red |
Off |
Good test pattern |
|
TEST |
Yellow |
On |
Modem in test mode |
|
TEST |
Yellow |
Off |
Modem not in test mode |