ADTRAN
TSU ESP
Card Type | T1 DSU/CSU with Embedded SNMP |
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 LAN interface module, DBU interface module |
T1 Data Rate | 1.544Mbps |
ISDN Rate | 128Kbps |
Line Coding | AMI, B8ZS |
Framing | D4, ESF |
Data Bus | External |

CONNECTIONS | |||
Function | Label | Function | Label |
25-pin DBU interface | CN1 | Control port - chain in (RJ-48) | CN7 |
10 BaseT interface (RJ-45) | CN2 | Control port - chain out (RJ-48) | CN8 |
T1 network port (RJ-48) | CN3 | V.35 DTE port | CN9 |
Test jack - in | CN4 | Power | CN10 |
Test jack - out | CN5 | Power switch | SW1 |
Test jack - monitor | CN6 | ||
Note: The DBU interface module (CN1) may feature a switched 56K interface, V.34 interface, or ISDN interface. The optional LAN interface module (CN2) provides a 10BaseT Ethernet connection | |||
DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
RS | Unidentified | On | RTS signal high |
RS | Unidentified | Off | RTS signal low |
CS | Unidentified | On | CTS signal high |
CS | Unidentified | Off | CTS signal low |
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 |
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 |