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. |