DOWNLOAD Panasonic KX-NT543RU / KX-NT543RU-B / KX-NT546RU / KX-NT546RU-B (serv.man2) Service Manual ↓ Size: 3 MB | Pages: 80 in PDF or view online for FREE

17

When selecting Ethernet cables (not included)
• Use flexible cables without jack covers. Do not use cables with a hard coating that may tear or crack when bent.

To prevent damage to the cables, use cables that do not protrude from the bottom of the base.
Connect the cables as shown in the following illustration.

• Use a straight CAT 5 (or higher) Ethernet cable (not included) that is 6.5 mm in diameter or less.
When connecting to a switching hub
• If PoE is available, an AC adaptor is not needed.
• KX-NT543/KX-NT546 complies with the PoE Class 2 standard.

When connecting a PC
• The PC port does not support PoE for connected devices.

When connecting cables and the AC adaptor
• Ensure that the Ethernet cables and the AC adaptor cord are clamped to prevent damage to the connectors.

18

This is for VoIP Communication Test Connection Chart.

• Unit for Test phone
• AC adaptor( or LAN cable and switching hub with PoE)

1. Connect power plug (AC adaptor/PoE).
2. Push [1][*][CONF] keys within 5 seconds after power on.
3. Keep it until "Now Loading" is displayed on LCD

   Now Loading

*If "IPL start..."is displayed before "Now Loading" on LCD,it fails in the setting for Test mode
  Try agin from Step.1

4. Release keys. 
5. After 10 seconds,"HOOK Test" is displayed on LCD.
6. Press "SP-phone" key 8 times slowly.

"ACOUSTIC TEST" is displayed on LCD.

It is set to Loopback Test mode to connect "Send signal" with "Receive signal" by inputting two number.

Input number is 6,7 and 8 and the mode is as follows
(I) :  Input    6.SP-phoneMIC  7.HandsetMIC  8.HeadsetMIC
(O): Output  6.SP-phoneSP   7.HandsetSP    8.HeadsetSP

1. Handset MIC  

→  Handset SP

          7                             7
   I:HsMic_WB
   O:HsSp_WB

                   * WB:Wide Band
→ No sound

2. Handset MIC  

→  SP-phone SP

          7                             6
   I:HsMic_WB
   O:Sp_WB

→ OK
This result shows there is a problem in the signal line of Handset SP.

Just power off.

Headset

AC Adaptor : PQLV206**

  or Equivalent

  or PoE(to LAN port)

19

This unit has the KEYs and LEDs Test mode.
By using this mode, you can easily check KEYs and LEDs.

• Unit for Test phone
• AC adaptor or Ethernet cable(PoE).

1. Connect power plug(AC adaptor/PoE).
2. Press "1","*"and "CONF" keys at the same time within 5 seconds after power on. Keep it until  "Now Loading" is displayed on

LCD.

3. Release keys.
4.After 10 seconds,all red LED turn on and beep sounds is heard.

1. Then the LCD displays [HOOK Test].

(When skip [HOOK Test], Press SP-PHONE key. )
The SP-PHONE LED is on/off according to HOOK switch.
Press SP-PHONE key.

2. Then the LCD displays [HEADSET Test].

(When skip [HEADSET Test], Press SP-PHONE key. )
The SP-PHONE LED is on/off according to Headset detection.
Press SP-PHONE key

3. Then the LCD displays [EHS Test].

(When skip [EHS Test], Press SP-PHONE key. )
The SP-PHONE LED is on/off according to EHS detection.
Press SP-PHONE key.

4. Then the LCD displays all dots.

Confirm all dots of LCD and backlight are on.
Press SP-PHONE key.

[KEYs Test]
5.  Then the LCD displays [Key-Check Test] .

Press all keys except SP-PHONE key. 
Press SP-PHONE key. LCD displays [All keys Pressed. OK]

[LEDs Test]
6. Confirm all red LEDs and intercom LED turn on.

Press SP-PHONE key.

7. Confirm all red LEDs of CO line change to green

Press SP-PHONE key

8.  Then the LCD displays [RESONANCE TEST]

Confirm the resonance by speaker sound.

9.  Then the LCD displays [ACOUSTIC TEST]

This TEST mode is not used in service.Press SP-PHONE key three times.Then it returns the first.

It is OK to quit anytime during test mode. Disconnect AC adaptor or Ethernet cable(PoE).

20

Units are reset to the Factory settings by this operation (Erase stored Phone numbers, Caller list and etc.).
This operation should not be performed for a usual repair.

1. Connect power plug(AC adaptor/PoE)
2. Press "1","5","9"and ""*" at the same time within 5 seconds after power on.  

Keep it until "Now Loading" is displayed on LCD.

3. Release keys.
4. After 10 seconds,all red LEDs of CO line turn on.

Beep sounds is heard.

5. Soon,red LEDs of CO line changes to green.
6. Power off.

When replacing the Main P.C.B., customer data shall be renewed before sticking the included MAC/Address.

(*1) : If you reuse defective P.C.B. for another repairing unit by repairing. Peel off the serial number and MAC address label on
original bottom cabinet and keep them with defective P.C.B..
(*2) : If you do not reuse the defective P.C.B. by repairing, scrap the P.C.B. to prevent the leak of customer's information in flash
ROM.