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# ADTRAN
TSU LT
Card Type T1 CSU/DSU
Chip Set Unidentified
I/O Options V.35 DTE port, test jack - in, test jack - out,
test jack - monitor ,
RJ-48 control ports (2), T1 network interface via
RJ-48, power
T1 Data Rate 1.544Mbps
Line Coding AMI, B8ZS
Framing D4, ESF
Data Bus External
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+---------------------+-------|
| T1 network port | CN1 | Control port - | CN6 |
| (RJ-48) | | chain out (RJ-48) | |
|----------------------+-------+---------------------+-------|
| Test jack - in | CN2 | V.35 DTE port | CN7 |
|----------------------+-------+---------------------+-------|
| Test jack - out | CN3 | Power | CN8 |
|----------------------+-------+---------------------+-------|
| Test jack - monitor | CN4 | Power switch | SW1 |
|----------------------+-------+---------------------+-------|
| Control port - chain | CN5 | | |
| in (RJ-48) | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-----+--------------+--------+------------------------------|
| PWR | Unidentified | On | Power is on |
|-----+--------------+--------+------------------------------|
| PWR | Unidentified | Off | Power is off |
|-----+--------------+--------+------------------------------|
| ERR | Unidentified | On | Error has been detected on |
| | | | network |
|-----+--------------+--------+------------------------------|
| ERR | Unidentified | Off | Error has not been detected |
| | | | on network |
|-----+--------------+--------+------------------------------|
| ALM | Unidentified | On | Open loop, loss of frame |
| | | | synchronization, dial backup |
| | | | mode, or problem with dial |
| | | | backup line alarm condition |
| | | | detected on network |
|-----+--------------+--------+------------------------------|
| ALM | Unidentified | Off | Open loop, loss of frame |
| | | | synchronization, dial backup |
| | | | mode, or problem with dial |
| | | | backup line alarm condition |
| | | | not detected on network |
|-----+--------------+--------+------------------------------|
| TST | Unidentified | On | Device is conducting a test |
|-----+--------------+--------+------------------------------|
| TST | Unidentified | Off | Device is not conducting a |
| | | | test |
|-----+--------------+--------+------------------------------|
| TD | Unidentified | On | Data is being transmitting |
| | | | from DTE |
|-----+--------------+--------+------------------------------|
| TD | Unidentified | Off | Data is not being |
| | | | transmitting from DTE |
|-----+--------------+--------+------------------------------|
| RD | Unidentified | On | Data is being received from |
| | | | network |
|-----+--------------+--------+------------------------------|
| RD | Unidentified | Off | Data is not being received |
| | | | from network |
|-----+--------------+--------+------------------------------|
| RS | Unidentified | On | RTS signal high |
|-----+--------------+--------+------------------------------|
| RS | Unidentified | Off | RTS signal low |
|-----+--------------+--------+------------------------------|
| CS | Unidentified | On | CTS signal high |
|-----+--------------+--------+------------------------------|
| CS | Unidentified | Off | CTS signal low |
+------------------------------------------------------------+