LDV-2 modem/telephone/ISDN Settings and Configuration
RAD DATA COMMUNICATIONS
LDV-2
Modem Type | Data (synchronous/asynchronous) |
Maximum Data Rate | 19.2Kbps |
Data Bus | External |
Data Modulation Protocol | Prorietary |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Line out | CN1 | Digital loopback switch | DLB |
Line in | CN2 | Data clamp and loop 1 test switch | DC-L1 |
RS-232 | CN3 | Remote digital loopback switch | RLB |
AC power | CN4 | Fuse | FUSE |
BAUD RATE | |
| Setting | SW1 |
| 19.2Kbps | 0 |
| 14.4Kbps | 1 |
| 9600bps | 2 |
| 7200bps | 3 |
| » 4800bps | 4 |
| 3600bps | 5 |
| 2400bps | 6 |
| 1800bps | 7 |
| 1200bps | 8 |
900bps | 9 |
CARRIER TRANSMISSION LEVEL | |||
| Setting | JP5/A | JP5/B | JP5/C |
| Long distance (-50dBm) | Closed | Open | Open |
| » Medium distance (-40dBm) | Open | Closed | Open |
| Short distance (-30dBm) | Open | Open | Closed |
CD SIGNAL | |||
| Setting | JP7/A | JP7/B | JP7/C |
| » CD forced high. | Closed | Open | Open |
| CD follows RTS signal. | Open | Closed | Open |
| CD normal. | Open | Open | Closed |
CENTRAL/REMOTE UNIT SELECTOR | |
| Settings | JP1 |
| Central unit | Pins 1 & 2 closed |
| » Remote unit | Pins 2 & 3 closed |
CHASSIS TO SIGNAL GROUND | |
| Setting | JP8 |
| Connected | Pins 2 & 3 closed |
| » Disconnected | Pins 1 & 2 closed |
CLOCK SOURCE | |||
| Setting | JP4/A | JP4/B | JP4/C |
| External | Closed | Open | Open |
| » Internal | Open | Closed | Open |
| Receive | Open | Open | Closed |
DATA CLAMP/LOOP1 TEST | |
| Setting | JP10 |
| Enabled | Pins 1 & 2 closed |
| » Disabled | Pins 2 & 3 closed |
ENABLES TEST PUSHBUTTONS | |
| Setting | JP9 |
| » DLB, DC-L1, RLB enabled | Pins 1 & 2 closed |
| Disabled | Pins 2 & 3 closed |
REMOTE LOOPACK | |
| Setting | JP11 |
| Enabled | Pins 1 & 2 closed |
| » Disabled | Pins 2 & 3 closed |
RTS/CTS DELAY | |||
| Setting | JP3/A | JP3/B | JP3/C |
| 0 ms | Closed | Open | Open |
| » 8 ms | Open | Closed | Open |
| 68 ms | Open | Open | Closed |
SYNCHRONOUS/ASYNCHRONOUS SELECTOR | |
| Settings | JP2 |
| Synchronous | Pins 1 & 2 closed |
| » Asynchronous | Pins 2 & 3 closed |
TRANSMIT LEVEL | |||
| Remote/Central mode | JP6/A | JP6/B | JP6/C |
| » 0dBm/-6dBm | Closed | Open | Open |
| -3dBm/-9dBm | Open | Closed | Open |
| -6dBm/-12dBm | Open | Open | 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 |
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