RAD DATA COMMUNICATIONS
FCD-E1/1
Card Type |
E1 CSU/DSU |
Chip Set |
Unidentified |
I/O Options |
AC power connector, 25-pin port (RS-530), BNC connectors (2), 9-pin serial ports (2 RS-232), E1 network interface via RJ-45 connector |
E1 Transfer Rate |
2.048Kbps |
E1 Protocol |
HDB3 |
Frame type |
CRC-4 |
Data Bus |
External |
CONNECTIONS | |||
Function |
Label |
Function |
Label |
AC power connector |
CN1 |
Header connector to CH2 interface board |
CN8 |
DTE serial port |
CN2 |
Header connector to CH2 interface board |
CN9 |
25-pin connector - channel 1 |
CN3 |
DCE serial port |
CN10 |
Network port via RJ-48 connector |
CN4 |
Power switch |
SW2 |
Header connector to sub interface board |
CN5 |
BNC connector - receive |
RX |
Header connector to CH2 interface board |
CN6 |
BNC connector - transmit |
TX |
Header connector to CH2 interface board |
CN7 |
USER CONFIGURABLE SETTINGS | |||
Setting |
Label |
Position | |
» |
Signal ground is connected to the frame ground |
JP8 |
Closed |
Signal ground is not connected to the frame ground |
JP8 |
Open | |
» |
Transmit side ground reference set for balanced interface |
JP9 |
Open |
Transmit side ground reference set for unbalanced interface |
JP9 |
Closed | |
» |
Receive side ground reference set for balanced interface |
JP10 |
Open |
Receive side ground reference set for unbalanced interface |
JP10 |
Closed | |
» |
Front panel push-buttons enabled |
JP77 |
Open |
Front panel push-buttons disabled |
JP77 |
Closed | |
» |
Supervisor ports operate according to user-defined parameters |
S1/1 |
Off |
CSU/DSU uses default parameters stored in its EPROM |
S1/1 |
On | |
» |
Default password enabled. Password=RAD |
S1/2 |
On |
User password enabled |
S1/2 |
Off | |
» |
Loads user-selected parameters from NVRAM on power-up |
S1/3 |
Off |
Loads default parameters stored in its EPROM on power-up |
S1/3 |
On | |
» |
Factory configured - do not alter |
S1/4 |
Off |
MAIN LINK INTERFACE | ||||||||
Function |
JP7 |
JP12/A |
JP12/B |
JP12/C |
JP12/D |
JP33 |
JP35 | |
» |
Balanced interface |
Open |
Open |
Closed |
Open |
Open |
2 & 3 |
2 & 3 |
Unbalanced interface |
Closed |
Open |
Open |
Open |
Closed |
1 & 2 |
1 & 2 | |
Note: Pins designated are in the closed position |
ALARM RELAY | |||
Function |
JP51 |
JP52 | |
» |
Alarm relay disconnected. DTE port (CN2) provides full functionality |
2 & 3 |
2 & 3 |
Alarm relay connected instead of DCD and CTS lines |
1 & 2 |
1 & 2 | |
Note: Pins designated are in the closed position |
DIAGNOSTIC LED(S) | |||
LED |
Color |
Status |
Condition |
LOC1 |
Unidentified |
On |
Local synchronization lost on main link |
LOC1 |
Unidentified |
Off |
Local synchronization OK on main link |
REM1 |
Unidentified |
On |
Remote synchronization lost on main link |
REM1 |
Unidentified |
Off |
Remote synchronization OK on main link |
LOC2 |
Unidentified |
On |
Local synchronization lost on sub link |
LOC2 |
Unidentified |
Off |
Local synchronization OK on sub link |
REM2 |
Unidentified |
On |
Remote synchronization lost on sub link |
REM2 |
Unidentified |
Off |
Remote synchronization OK on sub link |
ALM |
Unidentified |
On |
Alarm condition detected on network |
ALM |
Unidentified |
Off |
Alarm condition not detected on network |
TST |
Unidentified |
On |
Device loopback test active |
TST |
Unidentified |
Off |
Device loopback test not running |
VER. X.21
CONNECTIONS | |
Function |
Label |
15-pin connector - channel 1 |
CN11 |
VER. V.35
CONNECTIONS | |
Function |
Label |
34-pin connector - channel 1 |
CN12 |
MISCELLANEOUS TECHNICAL NOTE |
CN11 and CN12 are modules which can be used to replace CN3, allowing for various DTE/DCE interfaces. |