RAD DATA COMMUNICATIONS
ASMI-31 MODEM/IR-ETH
Card Type | Modem |
Chip Set | Unidentified |
I/O Options | AC power connector, 15-pin connector, Network interface via terminal block and RJ-45 connector, Ethernet bridge |
Wiring Type | RJ-45 shielded twisted pair Terminal block shielded twisted pair |
Maximum Data Rate | 128Kbps |
Line Coding | 2B1Q |
Data Bus | External |

CONNECTIONS | ||||
Function | Label | Function | Label | |
AC power connector | CN1 | Network interface via RJ-45 connector | CN4 | |
Ethernet interface | CN2 | Reset push-button | RESET | |
Network interface via terminal block | CN3 | |||
Note: | RJ-45 Ethernet connector is installed for use with 10BaseT networks. The ASMI-31 MODEM/IR-ETH is also available with a BNC connector for use with 10Base2 networks. | |||
USER CONFIGURABLE SETTINGS | ||
Setting | Label | Position |
í Loopback timing mode enabled | JP9 | Pins 3 & 4 closed |
Internal clock mode enabled | JP9 | Pins 2 & 3 closed |
External clock mode enabled | JP9 | Pins 1 & 2 closed |
í Remote digital DTE loopback test disabled | JP14 | Pins 1 & 2 closed |
Remote digital DTE loopback test enabled | JP14 | Pins 2 & 3 closed |
í Local analog DTE loopback test disabled | JP15 | Pins 1 & 2 closed |
Local analog DTE loopback test enabled | JP15 | Pins 2 & 3 closed |
í Signal ground is connected to the frame ground | JP18 | Pins 2 & 3 closed |
Signal ground is not connected to the frame ground | JP18 | Pins 1 & 2 closed |
í Factory configured - do not alter | SW1/1 | Off |
í Only frames destined for another LAN are transmitted over WAN | SW1/2 | On |
All frames are transmitted over WAN | SW1/2 | Off |
í Compression enabled | SW1/3 | On |
Compression disabled | SW1/3 | Off |
í WAN link is in synchronous mode | SW1/4 | Off |
WAN link is in asynchronous mode | SW1/4 | On |
í Synchronous operation mode enabled | SW6/1 | On |
Asynchronous operation mode enabled | SW6/1 | Off |
í 8-bit | SW6/2 | On |
7-bit | SW6/2 | Off |
í Parity enable | SW6/3 | On |
Parity disabled | SW6/3 | Off |
í Parity even | SW6/4 | On |
Parity odd | SW6/4 | Off |
í 1 stop bit | SW6/5 | On |
2 stop bits | SW6/5 | Off |
í DCD mode enabled | SW6/6 | On |
CNT mode enabled | SW6/6 | Off |
í DSR mode enabled | SW6/7 | On |
DTR mode enabled | SW6/7 | Off |
DATA RATE | ||||||
Setting | Mode | SW7 | ||||
1200bps | Sync/async | 1 | ||||
2400bps | Sync/async | 2 | ||||
4800bps | Sync/async | 3 | ||||
9600bps | Sync/async | 4 | ||||
19.2Kbps | Sync/async | 5 | ||||
38.4Kbps | Sync/async | 6 | ||||
48.0Kbps | Sync | 7 | ||||
í 64.0Kbps | Sync | 9 | ||||
128.0Kbps | Sync | A | ||||
57.6Kbps | Async | C | ||||
115.2Kbps | Async | D | ||||
16Kbps | Unidentified | E | ||||
32Kbps | Unidentified | F | ||||
ASMI-31 DIAGNOSTIC LEDS | |||
LED | Color | Status | Condition |
PWR | Green | On | Power is on |
PWR | Green | Off | Power is off |
TD | Yellow | On | Device is transmitting a steady space |
TD | Yellow | Blinking | Device is transmitting data |
TD | Yellow | Off | Device is not transmitting data |
RD | Yellow | On | Device is receiving a steady space |
RD | Yellow | Blinking | Device is receiving pulses from network |
RD | Yellow | Off | Device is not receiving pulses from network |
RTS | Yellow | On | RTS signal is high |
RTS | Yellow | Off | RTS signal is low |
DCD | Yellow | On | DCD signal is high |
DCD | Yellow | Off | DCD signal is low |
LOS | Red | On | Loss of synchronization |
LOS | Red | Blinking | Synchronization not established |
LOS | Red | Off | Synchronization OK |
ERR | Red | On | Error detected on received configuration information |
ERR | Red | Off | Error not detected on received configuration information |
TST | Red | On | Device is conducting a loopback test |
TST | Red | Off | Device is not conducting a loopback test |
ETH BRIDGE DIAGNOSTIC LEDS | |||
LED | Color | Status | Condition |
LINK | Green | On | Ethernet network bridge is good |
LINK | Green | Off | Ethernet network bridge is broken |
COLL | Yellow | On | Collision has been detected on network |
COLL | Yellow | Off | Collision has not been detected on network |
RX | Yellow | On | Data is being received |
RX | Yellow | Off | Data is not being received |
TX | Yellow | On | Data is being transmitted |
TX | Yellow | Off | Data is not being transmitted |
ERR | Red | On | Error has been detected |
ERR | Red | Off | Error has not been detected |