Kenwood Nexedge KTI-3 User manual

NETWORK INTERFACE UNIT
KTI-3
SERVICE MANUAL
© 2010-8 PRINTED IN JAPAN
B51-8928-00 (Y) 412
Badge
(B43-1652-04)
NETWORK INTERFACE UNIT
Metallic cabinet
(A01-2229-02)
Lead wire with connector
(E37-1526-15)
Chassis
(A10-4145-02)
Lead wire with connector
(E37-1527-05)
CONTENTS
GENERAL ................................................................2
REALIGNMENT .......................................................3
OPERATING FEATURES........................................... 4
DISASSEMBLY FOR REPAIR.................................... 4
CIRCUIT DESCRIPTION..........................................5
COMPONENTS DESCRIPTION ..............................5
PARTS LIST .............................................................6
EXPLODED VIEW....................................................9
PACKING ....................................................................10
TERMINAL FUNCTION..........................................11
PC BOARD
INTERFACE UNIT (X46-3370-20)...................14
SCHEMATIC DIAGRAM........................................18
BLOCK DIAGRAM.................................................24
SPECIFICATIONS..................................................26
This product complies with the RoHS directive for the Europeanmarket.
This product uses Lead Free solder.
N SYNC
LAN
AUX
DC IN
PWR STATUS
13.6V

KTI-3
2
Document Copyrights
Copyright 2010 by Kenwood Corporation. All rights re-
served.
No part of this manual may be reproduced, translated,
distributed, or transmitted in any form or by any means, elec-
tronic, mechanical, photocopying, recording, or otherwise,
for any purpose without the prior written permission of Ken-
wood.
Disclaimer
While every precaution has been taken in the prepara-
tion of this manual, Kenwood assumes no responsibility
for errors or omissions. Neither is any liability assumed for
damages resulting from the use of the information contained
herein. Kenwood reserves the right to make changes to any
products herein at any time for improvement purposes.
Firmware Copyrights
The title to and ownership of copyrights for firmware
embedded in Kenwood product memories are reserved for
Kenwood Corporation. Any modifying, reverse engineering,
copy, reproducing or disclosing on an Internet website of the
firmware is strictly prohibited without prior written consent of
Kenwood Corporation. Furthermore, any reselling, assigning
or transferring of the firmware is also strictly prohibited with-
out embedding the firmware in Kenwood product memories.
GENERAL
Service Manual parts numbers for equipment relative to the KTI-3
Model Parts Number Remarks
NXR-710 K B51-8901-00 VHF DIGITALBASE-REPEATER
NXR-710 E B51-8919-00 VHF DIGITALBASE-REPEATER
NXR-710 C B51-8923-00 VHF DIGITALBASE-REPEATER
NXR-810 K, K2 B51-8902-10 UHF DIGITALBASE-REPEATER
NXR-810 E B51-8920-00 UHF DIGITALBASE-REPEATER
NXR-810 C B51-8924-00 UHF DIGITALBASE-REPEATER

KTI-3
3
REALIGNMENT
1. Modes
● Transceiver (NXR-710/810) +KTI-3
2. How to Enter Each Mode
3-3. Programming
The firmware of the KTI-3 is stored in the NXR-710/810,
and installed in the KTI-3 asnecessary.
Conditions of the NXR-710/810 installing the firmware in
the KTI-3.
• When the firmware besides the firmware of the KTI-3 that
the NXR-710/810 stores is installed in the KTI-3 or no
firmware is written in the KTI-3.
• When an Intersite Call has been permitted by the FPU.
(When the FPU data is not written ("E1" display), the
firmware is not written.)
Note:
• The NXR-710/810 power switch will become disabled, to
prevent writing from failing while rewriting the firmware
("--" is displayed).
When turning the power switch off during writing, the
power will switch off only after rewriting has ended.
If the DC cable is removed, power will no longer be sup-
plied to the NXR-710/810 and KTI-3, thus writing of the
firmware will fail.
When the power supply is turned On, the PWR LED lights
orange and the Firmware Loader mode begins.
3. Firmware Programming Mode
3-1. Preface
The KTI-3 is programmed using the NXR-710/810.
3-2. Connection procedure
The figure below shows the connection method with the
NXR-710/810.
Connect the KTI-3 to the NXR-710/810 using the
N_SYNC cable and the DC cable.
Note:
• Refer to the NXR-710 service manual or NXR-810 ser-
vice manual for connecting the PC and NXR-710/810.
KTI-3
IPNETWORK
N SYNC
DC IN
13.6V
N SYNC
LAN
ROUTER
HUB
DC cable
N_SYNC cable
User mode
Firmware programming mode
NXR-710/810
Mode Function
User mode Use this mode for normal operation.
Firmware programming
mode Use when changing the firmware program of the flash memory.
Mode Operation
User mode Power ON (NXR-710/810)
Firmware programming
mode
-(Refer to "3-3. Programming")

KTI-3
4
Cabinet
CD
CD
x2
OPERATING FEATURES
1. Indicators (PWR STATUS)
RearPanel
Indicators (LAN)
Indicators
2. Indicators (LAN)
■ Reference drawing for mounting hardware
42.5 (1.67) 40 (1.57) 42.5 (1.67) mm (inch)
M3X8MAX
DISASSEMBLYFORREPAIR
1. Remove the cabinet from thechassis
1. Remove 4 screws
a
and 6 screws
b.
2. Remove the cabinet from the chassis.
CD
CD
Chassis
N SYNC
LAN
AUX
DC IN
PWR STATUS
13.6V
20.5
(0.81)
32 (1.26)
Mode Indicator Color Meaning
User mode PWR Green Lights while the power is ON.
STATUS Orange Lights when used as a Host
repeater.
Firmware
programming
mode
PWR Orange Lights when Firmware program-
ming mode.
STATUS
Red Lights when firmware is success-
fully written.
Green Blinks when writing the firmware
has failed.
Indicator Color Meaning
Full Duplex
(LAN : Right )
Green Lights when in Full Duplex mode.
Blinks when a collision status is detected in half
Duplex mode.
100Mbps
(LAN : Left)
Green Lights when in 100Base-TX mode.

KTI-3
5
CIRCUIT DESCRIPTION
1. MCU circuit
The MCU (IC10) 32bit microcontroller includes a 98kbit
chip SRAM.
2. Memory circuit
The flash memory has a capacity of 8Mbit (IC11) and
32Mbit (IC12).
3. Power supply circuit
The Power supply circuit consists of IC3 and IC7.
IC3 is a DC/DC converter and supplies 3.3V.
IC7 supplies 5.0V.
4. LAN interface circuit
This circuit consists of IC6 and J20.
This interface circuit corresponds to 100Base-TX and
10Base-T.
COMPONENTS DESCRIPTION
Interface unit (X46-3370-20)
Ref No. Part Name Description
IC1,2 IC RS-485 transceiver
IC3 IC DC/DC converter
IC4 IC Tri-statebuffer
IC5 IC RS-232C driver/receiver
IC6 IC Ethernet transceiver
IC7 IC Voltageregulator
IC8 IC Voltagedetector
IC10 IC MCU
IC11 IC Flash memory
IC12 IC Flash memory
Q1,3 Transistor DC switch (25M shift)
Q2 Transistor DC switch (SQ_OUT)
Q4,5 Transistor DC switch (12M shift)
Q6~9 Transistor DC switch (LED)
D1 Varistor Over current protection
D2 Zener diode Protection of reverse connection
D4 Schottky diode Catch diode (DC/DC converter)
D8 Diode Reverse current protection
D9 Zener diode Over voltage protection
D10 Schottky diode Over voltage protection
D11,12 LED Power/StatusIndicator
D13~18 Diode Surge protection
D19~22 Varistor Surge protection

6
KTI-3
P AR TS LIST
◆ New Parts. indicates safety criticalcomponents.
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
KTI-3
INTERFACE UNIT(X46-3370-20)
L : Scandinavia K :USA P : Canada
Y : PX (Far East,Hawaii) T : England E : Europe
C :China X :Australia M : Other Areas
Ref. No. Address
New
parts
Parts No. Description
Desti-
nation
C37 ,38
CC73HCH1H101J
CHIP C
100PF
J
C39
CK73HB1H102K
CHIP C
1000PF
K
C40 ,41
CC73HCH1H101J
CHIP C
100PF
J
C42
CK73HB1H681K
CHIP C
680PF
K
C43
CK73FB0J106K
CHIP C
10UF
K
C44
CK73EB1H474K
CHIP C
0.47UF
K
C45
CK73HB1A104K
CHIP C
0.10UF
K
C46
CC73HCH1H470J
CHIP C
47PF
J
C47
CK73HB1A104K
CHIP C
0.10UF
K
C48
CC73HCH1H470J
CHIP C
47PF
J
C49
CK73HB1A104K
CHIP C
0.10UF
K
C50
CC73HCH1H470J
CHIP C
47PF
J
C51
CK73HB1A104K
CHIP C
0.10UF
K
C52 ,53
CC73HCH1H470J
CHIP C
47PF
J
C54
CK73HB1A104K
CHIP C
0.10UF
K
C55
CK73FB0J106K
CHIP C
10UF
K
C57
CK73HB1H102K
CHIP C
1000PF
K
C58
CK73GB1C104K
CHIP C
0.10UF
K
C59
CK73HB1E103K
CHIP C
0.010UF
K
C60 ,61
C93-1827-05
CHIP C
22UF
K
C62 -64
CK73GB1C104K
CHIP C
0.10UF
K
C65
CC73HCH1H020B
CHIP C
2.0PF
B
C66
CC73HCH1H050B
CHIP C
5.0PF
B
C67
CE32BM1E470M
CHIP EL
47UF
25WV
C68
CK73HB1E103K
CHIP C
0.010UF
K
C69
CK73HB1H102K
CHIP C
1000PF
K
C70
CK73HB1A104K
CHIP C
0.10UF
K
C71
CC73HCH1H050B
CHIP C
5.0PF
B
C72
CC73HCH1H020B
CHIP C
2.0PF
B
C73
CC73HCH1H470J
CHIP C
47PF
J
C74
CK73HB1E103K
CHIP C
0.010UF
K
C75
CK73HB1H102K
CHIP C
1000PF
K
C76 ,77
CK73HB1A104K
CHIP C
0.10UF
K
C78
CC73HCH1H470J
CHIP C
47PF
J
C79
CE32BM1E470M
CHIP EL
47UF
25WV
C80
CK73HB1H102K
CHIP C
1000PF
K
C81
CC73HCH1H470J
CHIP C
47PF
J
C83
C93-1827-05
CHIP C
22UF
K
C84
CK73HB1A104K
CHIP C
0.10UF
K
C85 ,86
CC73HCH1H470J
CHIP C
47PF
J
C87
C93-1827-05
CHIP C
22UF
K
C90
CC73HCH1H470J
CHIP C
47PF
J
C91 ,92
CK73HB1A104K
CHIP C
0.10UF
K
C93
CC73HCH1H470J
CHIP C
47PF
J
C94
CK73HB1A104K
CHIP C
0.10UF
K
C95
CK73FB0J106K
CHIP C
10UF
K
C96
CK73HB1A104K
CHIP C
0.10UF
K
C97 ,98
CC73HCH1H470J
CHIP C
47PF
J
C99
CK73HB1A104K
CHIP C
0.10UF
K
C102
CC73HCH1H470J
CHIP C
47PF
J
C103
CK73HB1A104K
CHIP C
0.10UF
K
C104
CC73HCH1H470J
CHIP C
47PF
J
C105,106
CK73HB1A104K
CHIP C
0.10UF
K
C107
CK73FB0J106K
CHIP C
10UF
K
C108
CC73HCH1H470J
CHIP C
47PF
J
Ref. No. Address
New
parts
Parts No. Description
Desti-
nation
KTI-3
1
1B
✽
A01-2229-02
METALLIC CABINET (TOP)
2
3B
✽
A10-4145-02
CHASSIS
3
3A
✽
B11-1889-04
FILTER (LED)
5
1B
✽
B43-1652-04
BADGE
6
2C
✽
B62-2283-10
INSTRUCTION MANUAL
7
3B
✽
B72-2696-04
MODEL NAME-PLATE
8
2C
✽
E30-7717-05
MODULAR CABLE ACCESSORY
9
3A
✽
E37-1526-15
LEAD WIRE WITH CONNECTOR (DC)
10
3A
✽
E37-1527-05
LEAD WIRE WITH CONNECTOR (AUX)
11
2B
✽
G11-4548-04
SHEET (CLAMP FILTER)
12
3B
✽
G13-2337-04
CUSHION (LED)
13
2C
✽
G13-2338-04
CUSHION (BOTTOM) ACCESSORY
14
2C
✽
G13-2339-04
CUSHION ACCESSORY
15
2B
✽
G13-2349-04
CUSHION (CLAMP FILTER)
16 2B L92-0471-05 CLAMP FILTER
A
1A,1B
N35-2605-43
BINDING HEAD MACHINE SCREW
B
1B
N35-3005-43
BINDING HEAD MACHINE SCREW
C
2B
N87-2606-48
BRAZIER HEAD TAPTITE SCREW
INTERFACE UNIT (X46-3370-20)
D11 ,12 2A B30-2151-05 LED(RED/GREEN)
C1 ,2
CC73HCH1H101J
CHIP C 100PF
J
C3
CK73HB1H102K
CHIP C 1000PF
K
C4
CC73HCH1H101J
CHIP C 100PF
J
C5
CK73HB1H102K
CHIP C 1000PF
K
C6 -10
CC73HCH1H101J
CHIP C 100PF
J
C11 ,12
CK73HB1H102K
CHIP C 1000PF
K
C14
CC73HCH1H101J
CHIP C 100PF
J
C15
CK73HB1H102K
CHIP C 1000PF
K
C17 -21
CC73HCH1H101J
CHIP C 100PF
J
C22
CK73HB1A104K
CHIP C 0.10UF
K
C23
C92-0905-05
OS-CON 47UF
35WV
C24
CC73HCH1H220J
CHIP C 22PF
J
C25
CK73GB1C104K
CHIP C 0.10UF
K
C26
C92-0905-05
OS-CON 47UF
35WV
C27
CK73HB1A104K
CHIP C 0.10UF
K
C28
CK73HB1H102K
CHIP C 1000PF
K
C29
CK73GB1C104K
CHIP C 0.10UF
K
C30
CC73HCH1H220J
CHIP C 22PF
J
C31 ,32
CK73HB1H102K
CHIP C 1000PF
K
C33
C93-1810-05
CHIP C 4.7UF
K
C34
CC73HCH1H101J
CHIP C 100PF
J
C35
C93-1810-05
CHIP C 4.7UF
K
C36
CK73HB1H102K
CHIP C 1000PF
K

7
KTI-3
PARTSLIST
INTERFACE UNIT(X46-3370-20)
Ref. No. Address
New
parts
Parts No. Description
Desti-
nation
L13
✽
L92-0639-05
CHIP FERRITE
L15 -17
L92-0467-05
CHIP FERRITE
L19 -22
L92-0467-05
CHIP FERRITE
L23 ,24
L92-0639-05
CHIP FERRITE
L31
L92-0639-05
CHIP FERRITE
L33 -35 L92-0467-05 CHIP FERRITE
X2
L77-3067-05
CRYSTAL RESONATOR(25MHZ)
X4
L77-2951-05
CRYSTAL RESONATOR(12MHZ)
CP1
✽
RK74HB1J330J
CHIP-COM 33 J 1/16W
CP3 -5
✽
RK74HB1J330J
CHIP-COM 33 J 1/16W
CP12-15
RK74HB1J000J
CHIP-COM 0 J 1/16W
CP16
RK74HB1J102J
CHIP-COM 1.0K J 1/16W
CP22
✽
RK74HA1J000J
CHIP-COM 0 J 1/16W
CP24
✽
RK74HA1J000J
CHIP-COM 0 J 1/16W
CP25,26
✽
RK74HA1J220J
CHIP-COM 22 J 1/16W
CP27
✽
RK74HA1J330J
CHIP-COM 33 J 1/16W
R1 ,2
RK73HB1J103J
CHIP R 10K J 1/16W
R3
RK73HB1J000J
CHIP R 0 J 1/16W
R5 -7
RK73HB1J000J
CHIP R 0 J 1/16W
R8 -11
RK73EB2E101J
CHIP R 100 J 1/4W
R13
RK73HB1J271J
CHIP R 270 J 1/16W
R14 ,15
RK73HB1J102J
CHIP R 1.0K J 1/16W
R16
RK73HB1J101J
CHIP R 100 J 1/16W
R17
RK73HB1J102J
CHIP R 1.0K J 1/16W
R18
RK73HB1J101J
CHIP R 100 J 1/16W
R19
RK73HB1J102J
CHIP R 1.0K J 1/16W
R20 ,21
RK73HB1J101J
CHIP R 100 J 1/16W
R22
RK73HB1J473J
CHIP R 47K J 1/16W
R23
RK73GH2A49R9D
CHIP R 49.9 D 1/10W
R24
RK73HB1J473J
CHIP R 47K J 1/16W
R25
RK73HB1J000J
CHIP R 0 J 1/16W
R26
RK73GH2A49R9D
CHIP R 49.9 D 1/10W
R27 ,28
RK73HB1J473J
CHIP R 47K J 1/16W
R29
RK73GH2A101D
CHIP R 100 D 1/10W
R30
RK73HB1J684J
CHIP R 680K J 1/16W
R31
RK73HB1J183J
CHIP R 18K J 1/16W
R32 ,33
RK73HB1J473J
CHIP R 47K J 1/16W
R34 ,35
RK73HB1J103J
CHIP R 10K J 1/16W
R36
RK73HB1J563J
CHIP R 56K J 1/16W
R37 ,38
RK73HB1J473J
CHIP R 47K J 1/16W
R39
✽
RK73HH1J4991D
CHIP R 4.99K D 1/16W
R40
RK73HB1J103J
CHIP R 10K J 1/16W
R41
RK73HB1J473J
CHIP R 47K J 1/16W
R42
RK73HB1J472J
CHIP R 4.7K J 1/16W
R43
RK73HB1J271J
CHIP R 270 J 1/16W
R44
RK73HH1J224D
CHIP R 220K D 1/16W
R45
RK73HH1J683D
CHIP R 68K D 1/16W
R46
RK73HB1J472J
CHIP R 4.7K J 1/16W
R47
RK73HB1J103J
CHIP R 10K J 1/16W
R48 -54
RK73HB1J000J
CHIP R 0 J 1/16W
R55
RK73HB1J102J
CHIP R 1.0K J 1/16W
R56 -58
RK73HB1J473J
CHIP R 47K J 1/16W
R59 -61
RK73HB1J000J
CHIP R 0 J 1/16W
R62 ,63
RK73HB1J472J
CHIP R 4.7K J 1/16W
R64
RK73HB1J105J
CHIP R 1.0M J 1/16W
R65
RK73HB1J000J
CHIP R 0 J 1/16W
R66
RK73HB1J103J
CHIP R 10K J 1/16W
R70
RK73HB1J472J
CHIP R 4.7K J 1/16W
Ref. No. Address
New
parts
Parts No. Description
Desti-
nation
C109
2A
✽
CK73HB1A104K
CHIP C 0.10UF K
C110
CC73HCH1H470J
CHIP C 47PF J
C112
CK73HB1H102K
CHIP C 1000PF K
C114
CC73HCH1H470J
CHIP C 47PF J
C115
CK73HB1A104K
CHIP C 0.10UF K
C116
CK73HB1E103K
CHIP C 0.010UF K
C117
CK73HB1A104K
CHIP C 0.10UF K
C118
CC73HCH1H220J
CHIP C 22PF J
C119
CC73HCH1H470J
CHIP C 47PF J
C120,121
CC73HCH1H100D
CHIP C 10PF D
C122
CC73HCH1H220J
CHIP C 22PF J
C123
CK73HB1E103K
CHIP C 0.010UF K
C124-126
CC73HCH1H470J
CHIP C 47PF J
C127-129
CK73HB1A104K
CHIP C 0.10UF K
C132
CK73HB1A104K
CHIP C 0.10UF K
C133
CC73HCH1H470J
CHIP C 47PF J
C134
CK73HB1A105K
CHIP C 1.0UF K
C135
CK73HB1H102K
CHIP C 1000PF K
C137-139
CK73HB1H102K
CHIP C 1000PF K
C141
CK73HB1H102K
CHIP C 1000PF K
C142
CC73HCH1H101J
CHIP C 100PF J
C143-150
CK73HB1H102K
CHIP C 1000PF K
C153-157
CK73HB1H102K
CHIP C 1000PF K
C158
CC73HCH1H101J
CHIP C 100PF J
C159
CK73HB1H102K
CHIP C 1000PF K
C160
CC73HCH1H101J
CHIP C 100PF J
C161,162
CK73HB1H102K
CHIP C 1000PF K
C164
CK73HB1H102K
CHIP C 1000PF K
C166,167
CK73HB1H102K
CHIP C 1000PF K
C168,169
CC73HCH1H101J
CHIP C 100PF J
C172
CK73HB1H102K
CHIP C 1000PF K
C180-183
CK73HB1H102K
CHIP C 1000PF K
C185
CC73HCH1H470J
CHIP C 47PF J
C186
CK73HB1A104K
CHIP C 0.10UF K
C187
CC73HCH1H470J
CHIP C 47PF J
C188
CK73HB1A104K
CHIP C 0.10UF K
C189
CC73HCH1H470J
CHIP C 47PF J
C190
CK73HB1A104K
CHIP C 0.10UF K
C199,200
CK73HB1E103K
CHIP C 0.010UF K
C203,204
CK73HB1H102K
CHIP C 1000PF K
C206-211
CC73HCH1H101J
CHIP C 100PF J
C216,217
CC73HCH1H101J
CHIP C 100PF J
C218-220
CK73HB1H102K
CHIP C 1000PF K
C221,222
CC73HCH1H180J
CHIP C 18PF J
C223-225
CC73HCH1H101J
CHIP C 100PF J
C227 CK73HB1H682K CHIP C 6800PF K
CN10
E41-1732-05
PIN ASSY
CN11
E40-6102-05
PIN ASSY
J20
2A
✽
E58-0544-05
MODULAR JACK
J21
2A
E58-0533-05
MODULAR JACK
L2 ,3
L33-1500-05
CHOKE COIL
L4
L92-0639-05
CHIP FERRITE
L5 ,6
L33-1500-05
CHOKE COIL
L7
L92-0639-05
CHIP FERRITE
L9
L92-0639-05
CHIP FERRITE
L10
L33-1532-05
SMALL FIXED INDUCTOR (4.7UH)
L11
L92-0639-05
CHIP FERRITE
L12
L92-0467-05
CHIP FERRITE

KTI-3
P AR TS LIST
Note 1:This part cannot be replaced.Therefore, this part is not supplied as a service part.
8
INTERFACE UNIT(X46-3370-20)
Ref. No. Address
New
parts
Parts No. Description
Desti-
nation
IC3
✽
LT3685EMSE
ANALOGUE IC
IC4
TC7WT125FUF
MOS-IC
IC5
ADM101EARMZ
MOS-IC
IC6
E-STE100P
MOS-IC
IC7
NJM78M05DL1AZB
ANALOGUE IC
IC8
XC6108N31BM-G
ANALOGUE IC
IC10
✽
LPC2460FBD208
MICROPROCESSOR IC
IC11
✽
W05-1635-00
ROM IC
IC12
Note 1
ROM IC
Q1
2SC4738F
TRANSISTOR
Q2
2SD2114K(W)
TRANSISTOR
Q3 -5
2SC4738F
TRANSISTOR
Q6 -9
RT1P141M-T111
TRANSISTOR
Ref. No. Address
New
parts
Parts No. Description
Desti-
nation
R72
✽
RK73HB1J103J
CHIP R 10K
J
1/16W
R73
RK73HB1J473J
CHIP R 47K
J
1/16W
R74
RK73HB1J103J
CHIP R 10K
J
1/16W
R76
RK73HB1J000J
CHIP R 0
J
1/16W
R79
RK73HB1J000J
CHIP R 0
J
1/16W
R80 -83
RK73HB1J473J
CHIP R 47K
J
1/16W
R84
RK73HB1J000J
CHIP R 0
J
1/16W
R85 -90
RK73HB1J473J
CHIP R 47K
J
1/16W
R91 -93
RK73HB1J000J
CHIP R 0
J
1/16W
R94 ,95
RK73HB1J473J
CHIP R 47K
J
1/16W
R96
RK73HB1J102J
CHIP R 1.0K
J
1/16W
R97
RK73HB1J000J
CHIP R 0
J
1/16W
R98
RK73HB1J473J
CHIP R 47K
J
1/16W
R99 -101
RK73HB1J000J
CHIP R 0
J
1/16W
R103
RK73HB1J103J
CHIP R 10K
J
1/16W
R104
RK73HB1J472J
CHIP R 4.7K
J
1/16W
R105
RK73HB1J473J
CHIP R 47K
J
1/16W
R106,107
RK73HB1J000J
CHIP R 0
J
1/16W
R108
RK73HB1J472J
CHIP R 4.7K
J
1/16W
R109
RK73HB1J103J
CHIP R 10K
J
1/16W
R110-115
RK73HB1J473J
CHIP R 47K
J
1/16W
R118-120
RK73HB1J101J
CHIP R 100
J
1/16W
R121
RK73HB1J473J
CHIP R 47K
J
1/16W
R122
RK73HB1J121J
CHIP R 120
J
1/16W
R123,124
RK73HB1J473J
CHIP R 47K
J
1/16W
R125-128
RK73HB1J102J
CHIP R 1.0K
J
1/16W
R130,131
RK73HB1J102J
CHIP R 1.0K
J
1/16W
R132
RK73HB1J101J
CHIP R 100
J
1/16W
R133
RK73HB1J102J
CHIP R 1.0K
J
1/16W
R134
RK73HB1J101J
CHIP R 100
J
1/16W
R135,136
RK73HB1J102J
CHIP R 1.0K
J
1/16W
R139
RK73HB1J101J
CHIP R 100
J
1/16W
R140
RK73HB1J121J
CHIP R 120
J
1/16W
R141-144
RK73HB1J000J
CHIP R 0
J
1/16W
R146,147
RK73HB1J000J
CHIP R 0
J
1/16W
R148,149
RK73HB1J473J
CHIP R 47K
J
1/16W
R151,152
RK73HB1J101J
CHIP R 100
J
1/16W
R157,158
RK73HB1J101J
CHIP R 100
J
1/16W
R159-162
RK73HB1J473J
CHIP R 47K
J
1/16W
R164-166
RK73HB1J000J
CHIP R 0
J
1/16W
R186-188
RK73HB1J473J
CHIP R 47K
J
1/16W
R200
RK73HB1J473J
CHIP R 47K
J
1/16W
R201-214
RK73HB1J000J
CHIP R 0
J
1/16W
R215,216
RK73HB1J330J
CHIP R 33
J
1/16W
R217
RK73HB1J000J
CHIP R 0
J
1/16W
R218
RK73HB1J472J
CHIP R 4.7K
J
1/16W
R219
RK73HB1J473J
CHIP R 47K
J
1/16W
R220
RK73HB1J000J
CHIP R 0
J
1/16W
R221
RK73GB2A000J
CHIP R 0
J
1/10W
R222,223
RK73HB1J000J
CHIP R 0
J
1/16W
D1
SMD030F
VARISTOR
D2
KDZ36B
ZENER DIODE
D4
RSX301L-30
DIODE
D8
1SS355
DIODE
D9
✽
RKZ18B2KG
ZENER DIODE
D10
1SS388F
DIODE
D13 -18
DA204U
DIODE
D19 -22
✽
LXES15AAA1017
VARISTOR
IC1 ,2 ISL8485EIBZ MOS-IC

KTI-3
EXPLODED VIEW
A B
B
A B5
1
1
B
B
A
A
Ax2 A
16
Note:
When replacing the LED, bend the leg of
the LED at 4.0 mm (0.16 inches).
D11, D12
11
Cx2
701
PCB
24.0 mm (0.16 inches)
X46
CN10 15 15 Cx3
X46
D11
D12 J21
J20
Interface unit
12 (X46)
10 3
3 708
2
9 701
7
702 A : N35-2605-43
B : N35-3005-43
C : N87-2606-48
Parts with the exploded numbers larger than 700 are not supplied. 9

KTI-3
10
PACKING
C D
706 Item carton box
1
705 Protection bag
8 Modular cable
(E30-7717-05)
13 Cushion
(G13-2338-04)
14 Cushion x4
(G13-2339-04)
2
6 Instruction manual
(B62-2283-10)
704 Protection bag
703 Packing fixture
3
Parts with the exploded numbers larger than 700 are not supplied.

KTI-3
TERMINAL FUNCTION
11
Interface unit (X46-3370-20)
Pin No. Name I/O Function
CN10 (To DC power supply connector cable)
1GND -Ground
2+B IPower supply input (+B)
CN11 (To AUX connector)
1TA INot used
2AUX_O2 ONot used
3AGND -Ground (analog)
4NC -No connection
5RA ONot used
6AUX_I2 INot used
7AGND -Ground (analog)
8NC -No connection
9TXD0 OUART TXD #0 (MCU to AUX)
10 AUX_O1 ONot used
11 GND -Ground
12 NC -No connection
13 SQ_OUT ONot used
14 AUX_I1 INot used
15 LD_MOD ILoader mode selection
16 NC -No connection
17 GND -Ground
18 PTT_IN INot used
19 RXD0 IUART RXD #0 (AUX to MCU)
20 NC -No connection
J20 (LAN connector - PCB side)
1TXP OTX signal + for Ethernet
2TCT -TX signal center tap
3TXN OTX signal - for Ethernet
4RXP IRX signal + for Ethernet
5RCT -RX signal center tap
6RXN IRX signal - for Ethernet
7NC -No connection
8GND -Ground
9LEDC_C -Full duplex mode LED (cathode)
10 LEDC_A -Full duplex mode LED (anode)
11 LEDS_C -100BaseTX mode LED (cathode)
12 LEDS_A -100BaseTX mode LED (anode)
13 CGND -Ground (chassis)
14 CGND -Ground (chassis)
J21 (N_SYNC connector - PCB side)
1N_SYNC2_A I/O N_SYNC signal #2 (noninverting)
2N_SYNC2_B I/O N_SYNC signal #2 (inverting)
3N_SYNC1_A I/O N_SYNC signal #1 (noninverting)
4N_SYNC1_B I/O N_SYNC signal #1 (inverting)

KTI-3
12
TERMINAL FUNCTION
DC power supply connector
P i n
No.
Pin Name I/O Signal Type Modification
Description
/
port Type
Specification Min Typ Max Unit Remarks
1 +B I Power No Power Supply -10.8 13.6 15.6 V -
--200 mA
2NC --No -------
3NC --No -------
4GND -GND No GND ------
5NC --No -------
6NC --No -------
7NC --No -------
8NC --No -------
9 Jumper - - No Jumper Short
to 12pin This pin is connected to SPI (NXR-710/810).
- - - - -
10 NC --No -------
11 NC --No -------
12 Jumper - - No Jumpe Short
to 9pinr This pin is connected to SPO(NXR-710/810)
- - - - -
13 NC --No -------
14 NC --No -------
15 NC --No -------
3
1
4
9
A
12
15 13
A
LAN (RJ-45)
P i n
No.
Pin Name I/O Signal Type Modification
Description /
port Type
Specification Min Typ Max Unit Remarks
1TD+ OAnalog No TX Signal + -0.95 1.05 V
conform to
IEEE802.3
2TD-OAnalog No TX Signal --0.95 1.05 V
conform to
IEEE802.3
3RD+ IAnalog No RX Signal + -----
conform to
IEEE802.3
4NC --No -------
5NC --No -------
6RD-IAnalog No RX Signal ------
conform to
IEEE802.3
7NC --No -------
8NC --No -------
Panel View
8 1

KTI-3
TERMINAL FUNCTION
13
N_SYNC
P i n
No.
Pin Name I/O
Signal
Type
Modification
Description / port
Type
Specification Min Typ Max Unit Remarks
1 N_SYNC2_A I/O Digital No
RS-485
Differential
Signal #2 A
[Input] conform to RS-485
VID=VA-VB -7 12 VVcc=5±4%
VTH -0.2 0.2 V
[Output](No load) VCC V
VOD=|VA-VB|
2 N_SYNC2_B I/O Digital No
RS-485
Differential
Signal #2 B
[Input] conform to RS-485
VID=VA-VB -7 12 VVcc=5±4%
VTH -0.2 0.2 V
[Output](No load) VCC V
VOD=|VA-VB|
3 N_SYNC1_A I/O Digital No
RS-485
Differential
Signal #1 A
[Input] conform to RS-485
VID=VA-VB -7 12 VVcc=5±4%
VTH -0.2 0.2 V
[Output](No load) VCC V
VOD=|VA-VB|
4 N_SYNC1_B I/O Digital No
RS-485
Differential
Signal #1 B
[Input] conform to RS-485
VID=VA-VB -7 12 VVcc=5±4%
VTH -0.2 0.2 V
[Output](No load) VCC V
VOD=|VA-VB|
AUX connector (for production)
P i
n
No.
Name I/O Signal Type Modification Description / Port Type
1AUX_O2 ODigital No Not used
2TA IAnalog No Not used
3AGND -AGND No Analog GND
4AUX_I2 IDigital No Not used
5RA OAnalog No Not used
6AGND -AGND No Analog GND
7AUX_O1 ODigital No Not used
8TXD0 ODigital No Asynchronous send data #0
9GND -GND No Digital GND
10 AUX_I1 IDigital No Not used
11 SQ_OUT ODigital No Not used
12 LD_MOD IDigital No Loader mode selection L: loader mode Hi-Z: normalmode
13 PTT_IN IDigital No Not used
14 GND -GND No Digital GND
15 RXD0 IDigital No Asynchronous receive data #0
3 15
2 14 Panel View
1 13

KTI-3
14
General
Standard Input Voltage ...................................................................................... 13.6V DC negativeground
(Supplied from NXR-710/810)
Current Drain ..................................................................................................... 200mAMax
Temperature Range ........................................................................................... –30°C ~ +60°C (–22°F ~ +140°F)
Dimensions (W x H x D, Dimensions not including protrusions) ........................ 106 (4.17) x 32 (1.26) x 125 (4.92) mm (inch)
Weight ................................................................................................................ Approx. 490g(17.3oz)

KTI-3
15
EPCOM syscom – 1630 Paisano Dr. – El Paso. Tx 79901.
Ph [phone] www.epcom.net
2967-3, Ishikawa-machi, Hachioji-shi, Tokyo, 192-8525 Japan
P.O. BOX 22745, 2201 East Dominguez Street, Long Beach,
CA 90801-5745, U.S.A.
6070KestrelRoad,Mississauga, Ontario, CanadaL5T1S8
Rembrücker Str. 15, 63150 Heusenstamm, Germany
Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium
Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands
Via G. Sirtori, 7/9 20129 Milano, Italy
Bolivia, 239-08020 Barcelona, Spain
Talavera Business Park Building A, 4 Talavera Road,
North Ryde NSW 2113 Australia
L’ Etoile Paris Nord 2, 50 Allée des Impressionnistes,
Bp 58416 Villepinte, 95944 Roissy Ch De Gaulle Cedex
KENWOOD House, Dwight Road, Watford, Herts.,
WD18 9EB United Kingdom
Suite 2504, 25/F, Tower 2, Nina Tower, No. 8 Yeung Uk Road,
Tsuen Wan, New Territories, Hong Kong
1 Ang Mo Kio Street 63, Singapore 569110