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Samsung Electronics
Service Manual
System Overview
3-20
3.2.9 Line Interface Part
This is Connection Part between system and PSTN(Public Switched Telephone Network), and primary circuit is usually
located. Main functions are Line Interface, Telephone Connection and Line Condition Monitoring.
1 Telephone Line Connection
Modular Plug : RJ-11C
LIU PBA Modular Type : 623 PCB4-4
Line Code Length : 2500
50mm
Line Code Color : Black
ON HOOK state Characteristic
1) DC Resistance
DP Dial Mode (Direct Current 30mA) : 50 ~ 300ohm
DTMF Dial Mode (Direct Current 20mA) : 50 ~ 540ohm
2) Ring Sensitivity
Ring detection Voltage : 40Vrms 150Vrms (condition :Current=25mA,Frequency=15Hz)
product Margin : 30Vrms 150Vrms
Ring detection Frequency : 15.3Hz 68Hz (condition : Voltage=45Vrms,Current=25mA )
product Margin : 15Hz 70Hz
Ring detection Current : 20mA
100mA (condition : Voltage=40Vrms,Frequency=20Hz)
product Margin : over 15mA
3) False Ring Sound
Ring Frequency : 750 Hz + 1020 Hz
Ring interrupt Cycle : On/Off depending on input Ring Signal Cycle.
Summary of Contents for SCX 5530FN - Multifunction Printer/Copy/Scan/Fax
Page 43: ...System Overview Samsung Electronics Service Manual 3 25 ...
Page 84: ...Samsung Electronics Service Manual Alignment and Adjustments 4 30 ...
Page 85: ...Alignment and Adjustments Samsung Electronics Service Manual 4 31 ...
Page 86: ...Samsung Electronics Service Manual Alignment and Adjustments 4 32 ...
Page 87: ...Alignment and Adjustments Samsung Electronics Service Manual 4 33 ...
Page 88: ...Samsung Electronics Service Manual Alignment and Adjustments 4 34 ...
Page 197: ...Exploded View Parts List Samsung Electronics Service Manual 8 3 8 2 Housing Scanner 0 1 3 2 ...
Page 224: ...Block diagram Service Manual 8 1 Samsung Electronics 8 8 8 Block Diagram ...
Page 225: ...Connection Diagram Service Manual 9 1 Samsung Electronics 9 9 9 Connection Diagram ...
Page 261: ...Service Manual Connection Diagram 11 2 11 2 OPE ADF Power signal ...
Page 262: ...Connection Diagram Service Manual 11 3 Samsung Electronics 11 3 HVPS Voltage map ...