KX-NS5290CE - Panasonic PBX Service Manual (repair manual). Page 7

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The reference point of the line interface on the PRI30/E1 card is Point S/T (Point U is not supported.) and the external and inter-
nal line modes are supported as operating mode.
Also, the PRI30/E1 cards employ the PRI-IC (IC501) as the IC for Interface. Shows the characteristics of the PRI-IC.
See the PRI-IC data sheet for detailed specifications.

Characteristics of the PRI-IC

This card has the local highway at 2.048Mbps rate and local TSW in order to switch the talk channel (Bch), which is extracted
from ISDN primary rate by PRI-IC (IC501).
Shows the highway timing.

Item

Contents

Remarks

Line Extraction Clock

2.048MHz

 

DPLL

Low Jitter DPLL for clk generation 

 

Elastic Buffer

Programmable elastic buffer (Rx & Tx)

 MAX  512kbit

Signaling Controller

• HDLC Controller 
• CAS Controller
• Multiframe synchronization and synthesis ITU-T G.732 

 

FIFO

64Byte x 2

 

PCM Highway Interface

2.048Mbps Highway Interface

 

P-Interface

8bit parallel Bus (Intel)

bit0

bit1

bit2

bit3

bit0

bit1

bit2

bit3

bit255

bit255

bit0

bit1

bit2

bit3