KX-NS8290CE - Panasonic PBX Service Manual (repair manual). Page 48

48

1 PRI-TX at PRI23 Mode

Description: Framer PLL System Clock
Ch1: TP(16.384MHz)-DG

2 25MHz

Description: PHY Reference Clock
Ch1: TP(25MHz)-DG

3 RTC_CLK

Description: RTC Clock for Debug Purpose
Ch1: TP(RTC_CLK)-DG
Remark: This 16Hz clock can be measured when system software has started.

4 PRI-RX at PRI30/E1 Mode

Description: PRI30 or E1 Interface Rx Signal
Ch1: TP(PRI_RX+)-TP(PRI_RX-)
Remark: This Signal can be measured when KX-NS8290CE/8188X line 
               interface is Link up with DSU. Please check [LINE] LED.

PRI-TX at PRI30/E1 Mode

Description: PRI30 or E1 Interface Tx Signal
Ch1: TP(PRI_TX+)-TP(PRI_TX-)
Remark: This Signal can be measured when KX-NS8290CE/8188X line 
               interface is Link up with DSU. Please check [LINE] LED.

PRI-RX at PRI23 Mode

Description: PRI23 Interface Rx Signal
Ch1: TP(PRI_RX+)-TP(PRI_RX-)
Remark: This Signal can be measured when KX-NS8290X line interface is
               Link up with DSU. Please check [LINE] LED.

5

6

16.384MHz  

3.3V 

25MHz  

3.3V 

16Hz 

3.3V 

2.048MHz  

6.16V 

2.048MHz  

6.16V 

1.544MHz  

6.16V