RAD DATA COMMUNICATIONS
FOM-40
|
Modem Type |
Data (synchronous) |
|
Maximum Data Rate |
2048Kbps |
|
Data Bus |
External |
|
Data Modulation Protocol |
Proprietary |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
X.21/G.703 |
CN1 |
Digital loopback switch |
DIG |
|
AC/DC power |
CN2 |
Analog loopback switch |
ANA |
|
Receive fiber |
RX |
Remote loopback switch |
REM |
|
Transmit fiber |
TX |
Test pattern |
PATT |
|
ANALOG LOOPBACK | |
| Setting |
JP6 |
| Enabled |
Pins 1 & 2 closed |
| Disabled |
Pins 2 & 3 closed |
|
BAUD RATE | |
| Setting |
SW1 |
| 1.544Mbps |
0 |
| 1.536Mbps |
1 |
| 768Kbps |
2 |
| 384Kbps |
3 |
| 2.048Mbps |
4 |
| 1.024Mbps |
5 |
| 512Kbps |
6 |
| 256Kbps |
7 |
| 128Kbps |
8 |
| 64Kbps |
9 |
| 112Kbps |
A |
| 56Kbps |
B |
|
CD SIGNAL | |
| Setting |
JP2 |
| CD forced high |
Pins 1 &2 closed |
| CD normal |
Pins 2 & 3 closed |
|
CHASSIS TO SIGNAL GROUND | |
| Setting |
JP5 |
| Connected |
Pins 1 & 2 closed |
| Disconnected |
Pins 2 & 3 closed |
|
CLOCK SOURCE | |||
| Setting |
JP1/A |
JP1/B |
JP1/C |
| External |
Closed |
Open |
Open |
| Internal |
Open |
Closed |
Open |
| Receive |
Open |
Open |
Closed |
|
RANGE | |
| Setting |
JP3 |
| Long |
Pins 1 & 2 closed |
| Short |
Pins 2 & 3 closed |
|
REMOTE LOOPBACK | |
| Setting |
JP7 |
| Enabled |
Pins 1 & 2 closed |
| Disabled |
Pins 2 & 3 closed |
|
V.54 DELAY | |
| Setting |
JP4 |
| NO |
Pins 1 & 2 closed |
| YES |
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 |