ADC KENTROX DATASMART MODELS 7856X, 7876X (ADD/DROP) Card Type T1 CSU/DSU Chipset Unidentified T1 Transfer Rate 1.544Mbps T1 Protocol Unidentified Frame Type Unidentified Data Bus Serial [Image] CONNECTIONS Function Label Function Label Monitor receive CN1 V.35 serial data port CN9 equalization in jack 2 Monitor receive network CN2 V.24 DCE serial CN10 out jack control port Monitor monitor jack CN3 V.24 DTE serial CN11 control port Monitor transmit CN4 AC or DC power in CN12 equalization out jack (depends on model) Monitor transmit network CN5 T1 line out (network CN13 in jack interface) Monitor transmit monitor CN6 T1 line in (terminal CN14 jack interface) Auxiliary jack (see CN7 Alarm cutoff switch S3 pinout below) V.35 serial data port 1 CN8 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 8 contact Signal ground 4 Normally closed alarm 9 contact Unbalanced external clock 5 in THUMBWEEL FUNCTION SELECTION Function S1 S2 S3 Reset loopback tests Position 0 Pushed Not pushed Begin remote line loopback Position 1 Pushed Not pushed test Unidentified Position 2 Pushed Not pushed Reset to factory defaults and Position 3 Pushed for Pushed for switch settings 2 sec. 2 sec. Unidentified Position 3 Pushed Not pushed Begin near-end line loopback Position 4 Pushed Not pushed test Begin near-end payload Position 5 Pushed Not pushed loopback test Begin near-end local loopback Position 6 Pushed Not pushed test 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 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 DIAGNOSTIC LED(S) (CON’T) LED Color Status Condition 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 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 DIAGNOSTIC LED(S) (CON’T) LED Color Status Condition 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