RAD DATA COMMUNICATIONS
FCD-2L (DC)
|
Card Type |
E1 CSU/DSU |
|
Chip Set |
Unidentified |
|
I/O Options |
DC power connector, 25-pin connector (RS-530), E1 network interface via RJ-48 connector, BNC connectors (2) |
|
Wiring Type |
RJ-48 120ohm shielded twisted pair BNC 75ohm coaxial |
|
E1 Transfer Rate |
2.048Mbps |
|
E1 Protocol |
HDB3 |
|
Frame type |
256N, 256S |
|
Data Bus |
External |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
Analog loopback activation push-button |
ANA |
ATE connector (maintenance only) |
J1 |
|
Alarm clear push-button |
CLR |
Test pattern activation push-button |
PATT |
|
DC power connector |
CN1 |
Remote digital loopback activation push-button |
REM |
|
DTE/DCE serial port (25-pin connector) |
CN2 |
BNC connector - receive |
RX |
|
Network interface via RJ-48 connector |
CN3 |
BNC connector - transmit |
TX |
|
Digital loopback activation push-button |
DIG |
Power switch |
SW2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Setting |
Label |
Position | |
| » |
Front panel switches enabled |
JP2 |
Pins 1 & 2 closed |
|
Front panel switches disabled |
JP2 |
Pins 2 & 3 closed | |
| » |
Watchdog enabled |
JP5 |
Pins 1 & 2 closed |
|
Watchdog disabled |
JP5 |
Pins 2 & 3 closed | |
| » |
Debug self test mode disabled |
JP7 |
Pins 2 & 3 closed |
|
Debug self test mode enabled |
JP7 |
Pins 1 & 2 closed | |
| » |
Phantom power feeding is disabled |
JP19 |
Open |
|
Phantom power feeding is enabled |
JP19 |
Closed | |
| » |
Signal ground is connected to the frame ground |
JP23 |
Pins 2 & 3 closed |
|
Signal ground is not connected to the frame ground |
JP23 |
Pins 1 & 2 closed | |
| » |
E1 interface not referenced to frame ground |
JP26 |
Open |
|
E1 interface referenced to frame ground |
JP26 |
Closed | |
| » |
E1 interface receive signal not referenced to frame ground |
JP27 |
Open |
|
E1 interface receive signal referenced to frame ground |
JP27 |
Closed | |
| » |
E1 interface transmit signal not referenced to frame ground |
JP32 |
Open |
|
E1 interface transmit signal referenced to frame ground |
JP32 |
Closed | |
| » |
Unbalanced network interface not grounded |
JP204 |
Open |
|
Unbalanced network interface grounded |
JP204 |
Closed | |
| » |
CTS forced high |
S7/3 |
On |
|
CTS follows remote RTS |
S7/3 |
Off | |
| » |
Fast synchronization timing (1 sec) |
S7/4 |
Off |
|
AT&T TR-62411 synchronization timing (10 sec) |
S7/4 |
On | |
| » |
256S multiframe mode enabled |
S7/5 |
Off |
|
256N multiframe mode enabled |
S7/5 |
On | |
| » |
TS16 is reserved |
S7/6 |
Off |
|
TS16 is enabled to carry user's data |
S7/6 |
On | |
| » |
CRC-4 enabled |
S7/7 |
Off |
|
CRC-4 disabled |
S7/7 |
On | |
| » |
Factory configured - do not alter |
S7/8 |
Unidentified |
| » |
Nx64 mode |
S11/1 |
Off |
|
Nx56 mode |
S11/1 |
On | |
| » |
Internal clock mode enabled |
S11/2 |
Off |
|
Loopback timing mode enabled |
S11/2 |
On | |
| » |
Time slot allocation is sequential, starting from slot 1 |
S11/3 |
On |
|
Data is inserted in alternate time slots, starting from slot 1 |
S11/3 |
Off | |
| » |
Factory configured - do not alter |
S11/4 |
Unidentified |
|
BAUD RATE | ||
|
Setting |
S6 |
S9 |
|
Unframed |
0 |
0 |
|
Operational baud rate set to 1x64 |
0 |
1 |
|
Operational baud rate set to 2x64 |
0 |
2 |
|
Operational baud rate set to 3x64 |
0 |
3 |
|
Operational baud rate set to 4x64 |
0 |
4 |
|
Operational baud rate set to 26x64 |
2 |
6 |
|
Operational baud rate set to 27x64 |
2 |
7 |
|
Operational baud rate set to 28x64 |
2 |
8 |
|
Operational baud rate set to 29x64 |
2 |
9 |
|
Operational baud rate set to 30x64 |
3 |
0 |
|
Note: Multiples of 56Kbps or 64Kbps, up to 30 may be selected, for a maximum of 1680Kbps for multiples of 56Kbps or a maximum of 1920Kbps for multiples of 64Kbps. 31-99 are not used. | ||
|
DTE INTERFACE | ||||
|
Function |
J2 |
J3 |
J4 |
J5 |
|
V.35 DTE interface |
Open |
Open |
Board connected |
Board connected |
|
RS-422 interface |
Board connected |
Board connected |
Open |
Open |
|
MAIN LINK INTERFACE | |||||||
|
Function |
JP12 |
JP13 |
JP20/A |
JP20/B |
JP20/C |
JP20/D | |
| » |
Balanced interface |
1 & 2 |
1 & 2 |
Open |
Open |
Closed |
Open |
|
Unbalanced interface |
1 & 2 |
1 & 2 |
Closed |
Open |
Open |
Open | |
|
Note: Pins designated are in the closed position | |||||||
|
IDLE CODE | |||||||||
|
Setting |
S8/1 |
S8/2 |
S8/3 |
S8/4 |
S8/5 |
S8/6 |
S8/7 |
S8/8 | |
| » |
Default idle code |
Off |
Off |
Off |
Off |
Off |
Off |
Off |
Off |
|
Note: On=0, Off=1. Switch S8/1 is the most significant bit. Switch S8/2 is the least significant bit. Values are currently unidentified. | |||||||||
|
SERIAL COMMUNICATION | |||
|
Setting |
JP16 |
JP17 | |
| » |
Serial communication for maintenance purposes enabled |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
Reserved |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |
|
PORT TIMING | |||
|
Setting |
S7/1 |
S7/2 | |
|
DTE1 port timing |
On |
On | |
| » |
DCE port timing |
On |
Off |
|
DTE2 port timing |
Off |
On | |
|
Not used |
Off |
Off | |
|
E1 TRANSMIT LEVEL SELECTION | |||
|
Net build |
Label |
Position | |
| » |
0dBm |
S12 |
0 |
|
-7.5dBm |
S12 |
1 | |
|
-15dBm |
S12 |
2 | |
|
-22.5dBm |
S12 |
3 | |
|
DIAGNOSTIC LED(S) | |||
|
LED |
Color |
Status |
Condition |
|
PWR |
Unidentified |
On |
Power is on |
|
PWR |
Unidentified |
Off |
Power is off |
|
RTS |
Unidentified |
On |
RTS input line is on |
|
RTS |
Unidentified |
Off |
RTS input line is off |
|
TST |
Unidentified |
On |
Device is conducting a test |
|
TST |
Unidentified |
Off |
Device is not conducting a test |
|
ERR |
Unidentified |
On |
Error detected in the test pattern |
|
ERR |
Unidentified |
Off |
Error not detected in the test pattern |
|
LOC |
Unidentified |
On |
Synchronization lost on local FCD-2L |
|
LOC |
Unidentified |
Off |
Synchronization not lost on local FCD-2L |
|
REM |
Unidentified |
On |
Synchronization lost on remote FCD-2L |
|
REM |
Unidentified |
Off |
Synchronization not lost on remote FCD-2L |
|
10
|
Unidentified |
On |
BER on the network link exceeds 10
|
|
10
|
Unidentified |
Off |
BER on the network link does not exceed 10
|
|
MIN |
Unidentified |
On |
Minor alarm condition detected. Remains lit until fault condition disappears, or CLR button is pushed |
|
MIN |
Unidentified |
Off |
Minor alarm condition not detected |
|
MAJ |
Unidentified |
On |
Major alarm condition detected. Remains lit until fault condition disappears, or CLR button is pushed |
|
MAJ |
Unidentified |
Off |
Major alarm condition not detected |
