RAD DATA COMMUNICATIONS
ASM-45
Modem Type | Data (Synchronous) |
Maximum Data Rate | 768Kbps |
Data Bus | External |
Data Modulation Protocol | Proprietary |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
V.35/X.21/RS-530 | CN1 | Fuse | FUSE |
AC power | CN2 | Digital loopback switch | DIG |
Ground | GND | Analog loopback switch | ANA |
Receive | RCV | Remote loopback switch | REM |
Transmit | XMT | Test pattern | PATT |
ANALOG LOOPBACK | |
Setting | JP5 |
Enabled | Pins 2 & 3 closed |
» Disabled | Pins 1 & 2 closed |
BAUD RATE | |||||
Setting | JP1/A | JP1/B | JP1/C | JP1/D | JP1/E |
768Kbps | Closed | Open | Open | Open | Open |
512Kbps | Open | Closed | Open | Open | Open |
384Kbps | Open | Open | Closed | Open | Open |
» 256Kbps | Open | Open | Open | Closed | Open |
128Kbps | Open | Open | Open | Open | Closed |
CD SIGNAL | |
Setting | JP3 |
CD normal | Pins 2 & 3 closed |
» CD forced high | Pins 1 & 2 closed |
CHASSIS TO SIGNAL GROUND | |
Setting | JP9 |
» Connected | Pins 1 & 2 closed |
Disconnected | Pins 2 & 3 closed |
CLOCK SOURCE | |||
Setting | JP2/A | JP2/B | JP2/C |
External | Closed | Open | Open |
» Internal | Open | Closed | Open |
Receive | Open | Open | Closed |
REMOTE LOOPBACK | |
Setting | JP6 |
Enabled | Pins 2 & 3 closed |
» Disabled | Pins 1 & 2 closed |
TRANSMIT LEVEL | |
Setting | JP4 |
» 0dBm | Pins 2 & 3 closed |
-6dBm | Pins 1 & 2 closed |
V.54 DELAY | |
Setting | JP7 |
» Off | Pins 1 & 2 closed |
On | Pins 2 & 3 closed |
X.21 CLOCK SOURCE | |
Setting | JP8 |
External | Pins 1 & 2 closed |
» Internal | Pins 2 & 3 closed |
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 |
ERR | Yellow | On | Errors in test pattern |
ERR | Yellow | Off | Good test pattern |