RAD DATA COMMUNICATIONS
ASM-10/8
Modem Type | Data (synchronous/asynchronous) |
Maximum Data Rate | 19.2Kbps |
Data Bus | External |
Data Modulation Protocol | Proprietary |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
RS-232 | CN1 | Transmit | XMT |
AC power | CN2 | Digital loopback switch | DIG |
Ground | GND | Analog loopback switch | ANA |
Receive | RCV | Remote loopback swtich | REM |
AGC | |
Setting | JP12 |
» Forced high | Pins 2 & 3 closed |
Normal | Pins 1 & 2 closed |
ANALOG LOOPBACK | |
Setting | JP8 |
» Enabled | Pins 1 & 2 closed |
Disabled | Pins 2 & 3 closed |
ASYNCHRONOUS LENGTH - bits | ||
Setting | SW2/S3 | SW2/S4 |
8bits | Off | Off |
9bits | Off | On |
» 10bits | On | Off |
11bits | On | On |
ASYNCHRONOUS LENGTH - Characters | |
Setting | SW2/S2 |
» 12.5% | Off |
25% | On |
BAUD RATE | |
Setting | SW1 |
19.2Kbps | 0 |
14.4Kbps | 1 |
» 9600bps | 2 |
7200bps | 3 |
4800bps | 4 |
3600bps | 5 |
2400bps | 6 |
1200bps | 7 |
CD SIGNAL | |
Setting | JP4 |
CD normal | Pins 1 & 2 closed |
» CD forced high | Pins 2 & 3 closed |
CHASSIS TO SIGNAL GROUND | |
Setting | JP11 |
» Connected | Pins 1 & 2 closed |
Disconnected | Pins 2 & 3 closed |
CLOCK SOURCE | ||||
Setting | JP1/A | JP1/B | JP1/C | JP1/D |
» Internal | Closed | Open | Open | Open |
External | Open | Closed | Open | Open |
Receive | Open | Open | Closed | Open |
Asynchronous | Open | Open | Open | Closed |
ENABLE PUSHBUTTONS | |
Setting | JP10 |
» DIG, ANA, REM enabled | Pins 1 & 2 closed |
Disabled | Pins 2 & 3 closed |
LINE CONNECTION | |
Setting | JP2 |
» 4-wire | Pins 2 & 3 closed |
2-wire | Pins 1 & 2 closed |
RECEIVE IMPEDANCE | ||||
Setting | JP7/A | JP7/B | JP7/C | JP7/D |
» 150 Omhs | Closed | Open | Open | Open |
300 Omhs | Open | Closed | Open | Open |
600 Omhs | Open | Open | Closed | Open |
High | Open | Open | Open | Closed |
REMOTE LOOPBACK | |
Setting | JP9 |
» Enabled | Pins 1 & 2 closed |
Disabled | Pins 2 & 3 closed |
REMOTE POWER FAILURE | |
Setting | JP14 |
» Transmit RPF tone | Pins 1 & 2 closed |
Doesn’t transmit RPF tone | Pins 2 & 3 closed |
RTS/CTS DELAY | |||
Setting | JP3/A | JP3/B | JP3/C |
0 ms | Closed | Open | Open |
» 8 ms | Open | Closed | Open |
64 ms | Open | Open | Closed |
TRANSMIT IMPEDANCE | ||||
Setting | JP6/A | JP6/B | JP6/C | JP6/D |
» 150 Omhs | Open | Open | Closed | Open |
300 Omhs | Open | Closed | Open | Open |
600 Omhs | Closed | Open | Open | Open |
Low | Open | Open | Open | Closed |
TRANSMIT LEVEL | ||||
Setting | JP5/A | JP5/B | JP5/C | JP5/D |
» 0dBm | Closed | Open | Open | Open |
-3dBm | Open | Closed | Open | Open |
-6dBm | Open | Open | Closed | Open |
-9dBm | Open | Open | Open | Closed |
V.54 DELAY | |
Setting | JP13 |
On | Pins 1 & 2 closed |
» Off | Pins 2 & 3 closed |
USER CONFIGURABLE SETTINGS | ||
Function | Jumper/Switch | Position |
Asynchronous legnth | SW2/S1 | 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 |
TEST | Red | On | Modem in test mode |
TEST | Red | Off | Modem not in test mode |