System Overview
Samsung Electronics
Service Manual
3-7
3.1.4 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.
Содержание CLX 3160FN - Color Laser - All-in-One
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Страница 92: ...Disassembly and Reassembly Samsung Electronics Service Manual 5 27 6 Pull the Feed Idle Shaft Feed Idle Shaft ...
Страница 123: ...Samsung Electronics Service Manual Alignment and Adjustmens 6 24 6 8 2 Setting up System in Tech Mode ...
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Страница 196: ...Block Diagram Service Manual 9 1 Samsung Electronics 9 9 9 Block Diagram ...
Страница 197: ...Connection Diagram Service Manual 10 1 Samsung Electronics 10 10 10 Connection Diagram ...