ADC KENTROX
DATASMART MODEL 78772
Card Type | T1 CSU/DSU |
Chipset | Unidentified |
T1 Transfer Rate | 1.544Mbps |
T1 Protocol | Unidentified |
Frame Type | Unidentified |
Data Bus | Serial |

CONNECTIONS | |||
Function | Label | Function | Label |
Monitor receive equalization in jack | CN1 | V.24 DTE serial control port | CN10 |
Monitor receive network out jack | CN2 | Auxiliary jack (see pinout below) | CN11 |
Monitor receive monitor jack | CN3 | V.35 serial data port 1 | CN12 |
Monitor transmit equalization in jack | CN4 | V.35 serial data port 2 | CN13 |
Monitor transmit network out jack | CN5 | V.35 serial data port 3 | CN14 |
Monitor transmit monitor jack | CN6 | V.35 serial data port 4 | CN15 |
T1 line out (network interface) | CN7 | ACO switch | S3 |
T1 line in (terminal interface) | CN8 | DC power in (see pinout below) | SC1 |
V.24 DCE serial control port | CN9 | ||
CN1 PINOUT | |||
Function | Pin | Function | Pin |
Positive external clock in | 1 | Not used | 6 |
Negative external clock in | 2 | Alarm signal common | 7 |
Chassis ground | 3 | Normally open alarm contact | 8 |
Signal ground | 4 | Normally closed alarm contact | 9 |
Unbalanced external clock in | 5 | ||
SC1 PINOUT | |||
Function | Screw | Function | Screw |
-48DC power in | 1 | +48DC power in | 3 |
Ground | 2 | ||
THUMBWEEL FUNCTION SELECTION | |||
Function | S1 | S2 | S3 |
Reset loopback tests | Position 0 | Pushed | Not pushed |
Begin remote line loopback test | Position 1 | Pushed | Not pushed |
Unidentified | Position 2 | Pushed | Not pushed |
Reset to factory defaults and switch settings | Position 3 | Pushed for 2 sec. | Pushed for 2 sec. |
Unidentified | Position 3 | Pushed | Not pushed |
Begin near-end line loopback test | Position 4 | Pushed | Not pushed |
Begin near-end payload loopback test | Position 5 | Pushed | Not pushed |
Begin near-end local loopback test | Position 6 | Pushed | Not pushed |
Unidentified | Position 7 | Pushed | Not pushed |
Send QRST test code | Position 8 | Pushed | Not pushed |
Send 3 in 24 test code | Position 9 | Pushed | Not pushed |
Note:S2 and S3 must always be held for at least one-half of one second for the above functions to take effect. | |||
DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
TXD1 | Yellow | On | Data port 1 is receiving data from network |
TXD1 | Yellow | Off | Data port 1 is not receiving data from network |
RXD1 | Yellow | On | Data port 1 is transmitting data to network |
RXD1 | Yellow | Off | Data port 1 is not transmitting data to network |
CTS1 | Yellow | On | Data port 1 CTS is high |
CTS1 | Yellow | Off | Data port 1 CTS is low |
RTS1 | Yellow | On | Data port 1 RTS is high |
RTS1 | Yellow | Off | Data port 1 RTS is low |
TXD2 | Yellow | On | Data port 2 is receiving data from network |
TXD2 | Yellow | Off | Data port 2 is not receiving data from network |
RXD2 | Yellow | On | Data port 2 is transmitting data to network |
RXD2 | Yellow | Off | Data port 2 is not transmitting data to network |
CTS2 | Yellow | On | Data port 2 CTS is high |
CTS2 | Yellow | Off | Data port 2 CTS is low |
RTS2 | Yellow | On | Data port 2 RTS is high |
RTS2 | Yellow | Off | Data port 2 RTS is low |
TXD3 | Yellow | On | Data port 3 is receiving data from network |
TXD3 | Yellow | Off | Data port 3 is not receiving data from network |
RXD3 | Yellow | On | Data port 3 is transmitting data to network |
RXD3 | Yellow | Off | Data port 3 is not transmitting data to network |
CTS3 | Yellow | On | Data port 3 CTS is high |
CTS3 | Yellow | Off | Data port 3 CTS is low |
RTS3 | Yellow | On | Data port 3 RTS is high |
RTS3 | Yellow | Off | Data port 3 RTS is low |
TXD4 | Yellow | On | Data port 4 is receiving data from network |
TXD4 | Yellow | Off | Data port 4 is not receiving data from network |
DIAGNOSTIC LED(S) (CON’T) | |||
LED | Color | Status | Condition |
RXD4 | Yellow | On | Data port 4 is transmitting data to network |
RXD4 | Yellow | Off | Data port 4 is not transmitting data to network |
CTS4 | Yellow | On | Data port 4 CTS is high |
CTS4 | Yellow | Off | Data port 4 CTS is low |
RTS4 | Yellow | On | Data port 4 RTS is high |
RTS4 | Yellow | Off | Data port 4 RTS is low |
DATA1 | Green | On | Valid data signal detected on T1 network interface |
DATA1 | Green | Blinking | Network Set, Reset, or Test code detected on T1 network interface |
DATA1 | Green | Off | No valid signal detected on T1 network interface |
CV1 | Red | On | Code Violation error detected on T1 network interface |
CV1 | Red | Off | Code Violation error not detected on T1 network interface |
LOS1 | Red | On | Loss Of Signal condition detected on T1 network interface |
LOS1 | Red | Off | Loss Of Signal condition not detected on T1 network interface |
OOF1 | Red | On | Signal is out of frame synchronization on T1 network interface |
OOF1 | Red | Off | Signal is not out of frame synchronization on T1 network interface |
AIS1 | Red | On | Alarm Indication Signal condition detected on T1 network interface |
AIS1 | Red | Blinking | Alarm Indication Signal being transmitted to T1 network interface |
AIS1 | Red | Off | Alarm Indication Signal condition not detected on T1 network interface |
YEL1 | Yellow | On | Remote Yellow Alarm condition detected on T1 network interface |
YEL1 | Yellow | Blinking | Local Yellow Alarm condition detected on T1 network interface |
YEL1 | Yellow | Off | Yellow Alarm condition not detected on T1 network interface |
DATA2 | Green | On | Valid data signal detected on T1 terminal interface |
DATA2 | Green | Blinking | Network Set, Reset, or Test code detected on T1 terminal interface |
DATA2 | Green | Off | No valid signal detected on T1 terminal interface |
CV2 | Red | On | Code Violation error detected on T1 terminal interface |
CV2 | Red | Off | Code Violation error not detected on T1 terminal interface |
DIAGNOSTIC LED(S) (CON’T) | |||
LED | Color | Status | Condition |
LOS2 | Red | On | Loss Of Signal condition detected on T1 terminal interface |
LOS2 | Red | Off | Loss Of Signal condition not detected on T1 terminal interface |
OOF2 | Red | On | Signal is out of frame synchronization on T1 terminal interface |
OOF2 | Red | Off | Signal is not out of frame synchronization on T1 terminal interface |
AIS2 | Red | On | Alarm Indication Signal condition detected on T1 terminal interface |
AIS2 | Red | Blinking | Alarm Indication Signal being transmitted to T1 terminal interface |
AIS2 | Red | Off | Alarm Indication Signal condition not detected on T1 terminal interface |
YEL2 | Yellow | On | Remote Yellow Alarm condition detected on T1 terminal interface |
YEL2 | Yellow | Blinking | Local Yellow Alarm condition detected on T1 terminal interface |
YEL2 | Yellow | Off | Yellow Alarm condition not detected on T1 terminal interface |
PWR | Green | On | Power is on |
PWR | Red | On | Self-test failed |
PWR | Red | Blinking | Serious problem has occurred |
PWR | N/A | Off | Power is off |
LOOP | Yellow | On | Local loopback test in progress |
LOOP | Yellow | Blinking | Remote loopback test in progress |
LOOP | Yellow | Off | Loopback test not in progress |
SEND | Yellow | On | Test code being sent |
SEND | Yellow | Blinking | Remote loopback test may be in progress but cannot be verified |
SEND | Yellow | Off | Test code not being sent |
ALM | Red | On | Alarm condition detected and awaiting user intervention |
ALM | Green | On | Alarm condition detected; user intervention in progress |
ALM | Red | Blinking | Serious problem has occurred |
ALM | N/A | Off | Alarm condition not detected |