RAD DATA COMMUNICATIONS
FCD-T1/2/T1
| Card Type | T1 CSU/DSU |
| Chip Set | Unidentified |
| I/O Options | AC power connector, 25-pin RS-530 ports (2), serial ports (2), RJ-48 network interface (2) |
| T1 Transfer Rate | 1.544Mbps |
| T1 Protocol | AMI, Transparent, B7ZS, B8ZS |
| Frame type | D4 |
| Data Bus | External |
CONNECTIONS |
|||
Function |
Label |
Function |
Label |
| AC power connector | CN1 |
Auxiliary network port via RJ-48 connector | CN5 |
| DTE serial port 1 | CN2 |
Main network port via RJ-48 connector | CN6 |
| 25-pin connector - channel 1 | CN3 |
DCE serial port 2 | CN7 |
| 25-pin connector - channel 2 | CN4 |
Power switch | SW2 |
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 |
|
| » | Front panel push-buttons are enabled | JP77 |
Pins 1 & 2 closed |
| Front panel push-buttons are disabled | JP77 |
Pins 2 & 3 closed |
|
| » | Supervisor ports operate according to user-defined parameters | S1/1 |
Off |
| CSU/DSU uses default parameters stored in its EPROM | S1/1 |
On |
|
| User password enabled | S1/2 |
Off |
|
| » | Default password enabled. Password=RAD | S1/2 |
On |
| » | 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 |
ALARM/RELAY |
|||
Function |
JP51 |
JP52 |
|
| » | Alarm relay is disconnected. DTE serial port 1 (CN2) provides full functionality |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Alarm relay is connected instead of DCD and CTS lines. Polled communication disabled |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
DIAGNOSTIC LED(S) |
|||
LED |
Color |
Status |
Condition |
RED 1 |
Unidentified |
On |
DSU/CSU is detecting a red alarm condition on the main link |
RED 1 |
Unidentified |
Off |
DSU/CSU is not detecting a red alarm condition on the main link |
YEL 1 |
Unidentified |
On |
DSU/CSU is detecting a yellow alarm condition on the main link |
YEL 1 |
Unidentified |
Off |
DSU/CSU is not detecting a yellow alarm condition on the main link |
RED 2 |
Unidentified |
On |
DSU/CSU is detecting a red alarm condition on the sub link |
RED 2 |
Unidentified |
Off |
DSU/CSU is not detecting a red alarm condition on the sub link |
YEL 2 |
Unidentified |
On |
DSU/CSU is detecting a yellow alarm condition on the sub link |
YEL 2 |
Unidentified |
Off |
DSU/CSU is not detecting a yellow alarm condition on the sub link |
ALM |
Unidentified |
On |
DSU/CSU is detecting an alarm condition in the system |
ALM |
Unidentified |
Off |
DSU/CSU is not detecting an alarm condition in the system |
TST |
Unidentified |
On |
DSU or CSU loopback test active |
TST |
Unidentified |
Off |
DSU or CSU loopback test not running |
VER. X.21
CONNECTIONS |
|||
Function |
Label |
Function |
Label |
| 15-pin connector - channel 1 | CN7 |
15-pin connector - channel 2 | CN8 |
VER. V.35
CONNECTIONS |
|||
Function |
Label |
Function |
Label |
| 34-pin connector - channel 1 | CN9 |
34-pin connector - channel 2 | CN10 |
MISCELLANEOUS TECHNICAL NOTE |
| CN7/8 and CN9/10 are modules which can be used to replace CN3/4, allowing for various DTE/DCE interfaces. |