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# ADTRAN
TSU 120
Card Type T1 DSU/CSU
Chip Set Unidentified
I/O Options V.35 DTE port, T1 test jack - in, T1 test jack -
out, T1 test jack - monitor,
DTE test jack - in, DTE test jack - out, DTE test
jack - monitor,
RJ-48 control ports (2), T1 network interface via
RJ-48, power
DSX-1 DTE interface via RJ-48, Expansion module
T1 Data Rate 1.544Mbps
Line Coding AMI, B8ZS, RZ, Bipolar
Framing D4, ESF
Data Bus External
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+---------------------+-------|
| T1 network port | CN1 | DSX-1 port (RJ-48) | CN8 |
| (RJ-48) | | | |
|----------------------+-------+---------------------+-------|
| T1 test jack - in | CN2 | Control port - | CN9 |
| | | chain in (RJ-48) | |
|----------------------+-------+---------------------+-------|
| T1 test jack - out | CN3 | Control port - | CN10 |
| | | chain out (RJ-48) | |
|----------------------+-------+---------------------+-------|
| T1 test jack - | CN4 | V.35 DTE port | CN11 |
| monitor | | | |
|----------------------+-------+---------------------+-------|
| DTE test jack - in | CN5 | Power | CN12 |
|----------------------+-------+---------------------+-------|
| DTE test jack - out | CN6 | Power switch | SW1 |
|----------------------+-------+---------------------+-------|
| DTE test jack - | CN7 | | |
| monitor | | | |
|------------------------------------------------------------|
| Note: |
| |
| The optional expansion module may feature a switched 56K |
| interface, voice interface, V.35, |
| |
| RS-232, or ISDN T1 interface |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|------+--------+--------+-----------------------------------|
| OK1 | Green | On | DSU is operating in normal mode. |
| | | | No errors have been detected |
|------+--------+--------+-----------------------------------|
| OK1 | Green | Off | DSU is not in normal mode, or |
| | | | errors have been detected |
|------+--------+--------+-----------------------------------|
| TST1 | Yellow | On | DSU is conducting a test |
|------+--------+--------+-----------------------------------|
| TST1 | Yellow | Off | DSU is not conducting a test |
|------+--------+--------+-----------------------------------|
| ALM1 | Red | On | Alarm condition has been detected |
| | | | on DSU |
|------+--------+--------+-----------------------------------|
| ALM1 | Red | Off | Alarm condition has not been |
| | | | detected on DSU |
|------+--------+--------+-----------------------------------|
| OK2 | Green | On | Module is operating in normal |
| | | | mode. No errors have been |
| | | | detected |
|------+--------+--------+-----------------------------------|
| OK2 | Green | Off | Module is not in normal mode, or |
| | | | errors have been detected |
|------+--------+--------+-----------------------------------|
| TST2 | Yellow | On | Module is conducting a test |
|------+--------+--------+-----------------------------------|
| TST2 | Yellow | Off | Module is not conducting a test |
|------+--------+--------+-----------------------------------|
| ALM2 | Red | On | Alarm condition has been detected |
| | | | on option ports |
|------+--------+--------+-----------------------------------|
| ALM2 | Red | Off | Alarm condition has not been |
| | | | detected on option ports |
|------+--------+--------+-----------------------------------|
| OK3 | Green | On | CSU is operating in normal mode. |
| | | | No errors have been detected |
|------+--------+--------+-----------------------------------|
| OK3 | Green | Off | CSU is not in normal mode, or |
| | | | errors have been detected |
|------+--------+--------+-----------------------------------|
| TST3 | Yellow | On | CSU is conducting a test |
|------+--------+--------+-----------------------------------|
| TST3 | Yellow | Off | CSU is not conducting a test |
|------+--------+--------+-----------------------------------|
| ERR | Red | On | Error has been detected on |
| | | | network. Errors include: BPV, OOF |
| | | | or CRC |
|------+--------+--------+-----------------------------------|
| ERR | Red | Off | Error has not been detected on |
| | | | network |
|------+--------+--------+-----------------------------------|
| ALM3 | Red | On | Alarm condition has been detected |
| | | | on network |
|------+--------+--------+-----------------------------------|
| ALM3 | Red | Off | Alarm condition has not been |
| | | | detected on network |
+------------------------------------------------------------+