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In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder that con-
tains lead.
We will use PbF when discussing the lead free solder used in our manufacturing process which is made from Tin, (Sn), Silver,
(Ag), and Copper, (Cu).
This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB. For service and repair
work we suggest using the same type of solder. 

• PbF solder has a melting point that is 50

° ~ 70° F, (30° ~ 40°C) higher than Pb solder. Please use a soldering iron with tempera-

ture control and adjust it to 700

° ± 20° F, (370° ± 10°C). 

Exercise care while using higher temperature soldering irons.:
Do not heat the PCB for too long time in order to prevent solder splash or damage to the PCB.

• PbF solder will tend to splash if it is heated much higher than its melting point, approximately 1100

°F, (600°C).

• When applying PbF solder to double layered boards, please check the component side for excess which may flow onto the

opposite side (See figure, below).

There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper,
(Sn+Ag+Cu), you can also use Tin and Copper, (Sn+Cu), or Tin, Zinc, and Bismuth, (Sn+Zn+Bi). Please check the manufac
turer's specific instructions for the melting points of their products and any precautions for using their product with other 
materials. 
The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3mm, 0.6mm and 1.0mm.

When discarding P. C. Board, delete all personal information such as telephone directory and caller list or scrap P. C. Board.

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Control Bus

Original bus (16 bit, 8 MHz,10 megabytes per second)

Communication Bus

H.100 bus conformity (1024 time slot)

Switching

Non-blocking

Power Input

100 V AC to 130 V AC; 1.0 A/200 V AC to 240 V AC; 0.6 A; 50Hz/60 Hz

Power Consumption (when fully mounted)

51 W (240 V: 122 VA, 200 V: 113 VA, 130 V: 100 VA, 100 V: 92 VA)

Maximum Power Failure Tolerance

300 ms

Memory Backup Duration

 7 years

Dialling  

Trunk

Dial Pulse (DP) 10 pps, 20 pps
Tone (DTMF) Dialling

Extension 

Dial Pulse (DP) 10 pps, 20 pps
Tone (DTMF) Dialling

Mode Conversion 

DP-DTMF, DTMF-DP

Ring Frequency 

20 Hz/25 Hz (selectable)

Trunk Loop Limit 

1600 

Ω maximum

Operating Environment

Temperature

 0 

°C to 40 °C 

Humidity

10%to 90%

Conference Call Trunk 

From 10 x 3-party conference call to 4 x 8-party conference call

Music on Hold (MOH)

1 port (Level Control: -6 dB to +6 dB per 3 dB)
MOH1: Selectable Internal/External Music Source port

Paging

Internal

Level Control: -6 dB to +3 dB per 3 dB

External

1 port (Volume Control: -15 dB to +6 dB per 3 dB)

Serial Interface Port

RS-232C 

1 (max 115.2 kbps)

RJ45 Port

MNT Port 

1 (for PC connection)

LAN Port

1 (for LAN connection)

Extension Connection Cable

SLT 

1 pair wire (T, R)

DPT 

1-pair wire (D1, D2) or
2-pair wire (T, R, D1, D2)

APT 

2-pair wire (T, R, D1, D2)

PT-interface CS 

1-pair wire (D1, D2)

PT-interface CS (High-density)

4-pair wire (D1, D2)

DSS Consoles and Add-on Key Module

1-pair wire (D1, D2)

Dimension

430 mm (W) x 88 mm (H) x 340 mm (D)
(17 in x 3 1/2 in x 13 3/8 in)

Weight (when fully mounted)

Under 7 kg (15.4 lb.)

Terminal Equipment Loop Limit

• PT: KX-DT300/KX-T7600 series DPT: 90 

Ω; all other DPTs/APTs:40 Ω

• SLT: 600 

Ω including set

• Doorphone: 20 

Ω

• CS:  65

Ω

Minimum Leakage Resistance

15000 

Ω maximum

Maximum Number of Extension
Instruments per Line

1 for PT or SLT
2 by Parallel or eXtra Device Port connection of an APT/DPT and an SLT
3 by Digital eXtra Device Port connection of 2 DPTs and an SLT

Ring Voltage

75 Vrms at 20 Hz/25 Hz depending on the Ringing Load

Trunk Loop Limit

1600 

Ω maximum

Hookswitch Flash/Recall Timing Range

24 ms to 2032 ms

BRI Cards Internal ISDN Mode

Supply Voltage: 40 V
Power Supply (BRI2): 4.5 W per 1 line, 9 W per 2 lines
Power Supply Method: Phantom Power Supply

Door Opener Current Limit

24 V DC/30 V AC, 1 A maximum

External Relay Current Limit

24 V DC/30 V AC, 1 A maximum

External Sensor Current Limit

Power to the external sensor is provided from the EIO4 card and must be grounded through
the EIO4 card. For the connection diagram, refer to EIO4 Card (KX-TDA0164). The PBX
detects input from the sensor when the signal is under 100

Ω.

Paging Terminal Impedance

600 

Ω

MOH (Music on Hold) Terminal Impedance

10000 

Ω

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KX-NCP500UA IPCMPR CARD 

BLOCK DIAGRAM No.1

Local Highway 0ch

Back Board

Connector

RS232C

D/R

EC-bus

CT-bus

16bit

16bit

16bit

16bit

LAN

Controller

SDRAM

32M x 16

64MB

32bit

32bit

16bit

VoIPDSP

SRAM

1M x 6

1chip

2MB

CS4

FLASH

512K x 16

1chip

1MB

CS0

DDR SDRAM

512Mbit

(32M x 16)

2chip

128MB

SD_ACCESS_

_LED

BATT_ALARM

PHY

16bit

100Base TX

PCI bus

Serial

5 port LAN SW

100Base TX

SPI

/

RTC

bus

Serial

CPU

SH7780

SD

CARD

Connector

SD

Controller

CS6

MEC

I/F

8bit

FPGA

(POWER_LED_

CONTROLLER

RTC_ 

CONTROLLER

SPI_ CONTROLLER

Highway Buffer

LED_DRIVER

NEXUS-SRAM_I/F)

CS1

RMT

Connector

ASIC

CS5

CODEC

1chip

Melody

1chip

Buffered Local Highway 0ch

1ch

RTC

8bit

ESVM (DSP)

CS1

100Base TX

RJ45_CON

(TRANS)

ETHER_LED x 2

RJ45_CON

(TRANS)

100Base TX

PORT 2

PORT 1

EPG

MOH

RESET 

BUTTOM

INITIAL

SW

IC101

SW101

SW102

IC602

IC601,603

CN601

IC801

IC804,805

IC802

D801,802

IC1002

IC1101

JK1102

JK1103

IC1201

CN1201

IC1202

IC1301

IC1303

CN1301

IC1502
IC1505

JK1503

JK1502

CN1601

CN1701

_LED

1

5

2

3

4

ETHER_LED x 2

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