JRC NJT8318 Series User manual

NJT8318 series Instruction Manual Page 1
Copyright © 2014, New Japan Radio Co., Ltd. All rights reserved.
This instruction manual may not be reproduced, in part or in whole,
without the permission of New Japan Radio Co., Ltd.
The specifications and information regarding the products in this
instruction manual are subject to change without notice.
All statements, information, and recommendations in this
instruction manual are believed to be accurate but are presented
without warranty of any kind, express, or implied.
Users must take full responsibility for their application of any
products.
IM-T8318 Rev.01
Ku-band 8W BUC
Document Part Number: IM-T8318
Revision: 01
Issue Date: April 30, 2014
Instruction Manual
[NJT8318 series]
for

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IM-T8318 Rev.01
1.
2.
3.
4.
5.
NJRC offers a variety of microwave components intended for particular
applications. It is important that you select the proper component for your
intended application. You may contact NJRC's sales office or sales
representatives, if you are uncertain about the products listed in the
catalog and the specification sheets.
NJRC strives to produce reliable and high quality microwave components.
NJRC's microwave components are intended for specific applications and
require proper maintenance and handling. To enhance the performance
and service of NJRC's microwave components, the devices, machinery or
equipment into which they are integrated should undergo preventative
maintenance and inspection at regularly scheduled intervals. Failure to
properly maintain equipment and machinery incorporating these products
can result in catastrophic system failures.
General Caution
To ensure the highest levels of reliability, NJRC products must always be
properly handled. The introduction of external contaminants (e.g. dust, oil
or cosmetics) can result in failures of microwave components.
Special care is required in designing devices, machinery or equipment,
which demand high levels of reliability. This is particularly important when
designing critical components or systems whose foreseeable failure can
result in situations that could adversely affect health or safety. In
designing such critical devices, equipment or machinery, careful
consideration should be given to, amongst other things, their safety
design, fail-safe design, back-up and redundancy systems, and diffusion
design.
The products listed in the catalog and specification sheets may not be
appropriate for use in certain equipment where reliability is critical or
where the products may be subjected to extreme conditions. You should
consult our sales office or sales representatives before using the products
in any of the following types of equipment.
* Aerospace Equipment
* Equipment Used in the Deep Sea
* Power Generator Control Equipment (nuclear, steam, hydraulic)
* Life Maintenance Medical Equipment
* Fire Alarm/Intruder Detector
* Vehicle Control Equipment (automobile, airplane, railroad, ship, etc.)
* Various Safety Equipment

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IM-T8318 Rev.01
6.
General Caution (continued)
NJRC's products have been designed and tested to function within
controlled environmental conditions. Do not use products under conditions
that deviate from methods or applications specified in the catalog and
specification sheets. Failure to employ NJRC's products in the proper
applications can lead to deterioration, destruction or failure of the
products. NJRC shall not be responsible for any bodily injury, fires or
accidents, property damage or any consequential damages resulting from
the misuse or misapplication of its products. PRODUCTS ARE SOLD
WITHOUT WARRANTY OF ANY OF KIND, EITHER EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

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8. Maintenance ………………………………………………………………………………
9. Specification ………………………………………………………………………………
5 - 6
11
6. Installing ……………………………………………………………………………………
5. Physical Description …………………………………………………………………
4. Overview ……………………………………………………………………………………
13 - 16
17 - 21
7. GUI of Monitor and Control………………………………………………………
22
24 - 28
23
7 - 10
12
1. Introduction ………………………………………………………………………………
2. Safety Instructions ……………………………………………………………………
About This Instruction Manual
This instruction manual describes Ku-band 8W BUCs (Model No.: NJT8318 series)
herein referred to as "the Unit".
This instruction manual provides information and instructions for installation and
operation of the Unit.
3. Packing List ………………………………………………………………………………
Contents
This instruction manual is intended for use by trained field installers or system
engineers responsible for satellite networks.
Updated instruction manual may be available from NJRC's sales group
[e-mail].

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The Unit has the function of Monitor and Control which is complied with FSK
communication and RS-232C interfaces
This instruction manual is for Ku-band 8W BUCs (Model No.: NJT8318 series) .
1. Introduction
The Unit receives a reference signal (10 MHz) and an IF signal (L
‐
Band: 950 to
1,450 MHz or 950 to 1,700 MHz) input and transmits an RF signal (Standard Ku-
band: 14.0 to 14.5 GHz or Universal Ku
‐
band: 13.75 to 14.5 GHz) output.
The Unit comes in a single, weatherized housing rated for outdoor use. The Unit
has either an N-Type or a F-type female connector input, a WR75 waveguide with
grooved flange output, and optional MS connector for DC power input. The Unit
is operated by both +24 and +48 V DC power (Range: +18 to +60 V) input.

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The Unit has the following line-up:

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WARNING
2. Safety Instructions
CAUTION
WARNING indicates a potentially
hazardous situation which, if not
avoided, could result in death or
serious injury.
Description
DANGER
NOTE is used to notify of
installation, operation, or
maintenance information that is
important, but not hazard-
related.
DANGER indicates an imminently
hazardous situation which, if not
avoided, will result in death or
serious injury.
CAUTION indicates a potentially
hazardous situation which, if not
avoided, could result in minor or
moderate injury. CAUTION may
also be used to indicate other
unsafe practices or risks of
property damage.
NOTE
Statement
Symbol
Use the following safety guidelines to help protect the Unit from potential damage
and to help ensure your own personal safety.
DANGER, WARNING, CAUTION, and NOTE statements are used throughout
this instruction manual to emphasize important and critical information. You
must read these statements to help ensure safety and to prevent product
damage. The statement are defined below.
DANGER, WARNING, CAUTION, and NOTE Statements

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HOT SURFACE
2.1. Safety Statements
Description
Only input a voltage within the range indicated in specified
voltage.
DO operate at the input voltage of +18 to +60 V DC power.
1. Opening / Removing
When installing the Unit, observe the following safety guidelines.
2. Input Voltage
DO NOT dismantle this product.
Dismantlement may cause malfunction and electric shock.
GENERIC HAZARD
MOVING PARTS
ELECTRIC HAZARD
Symbol

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Operate the Unit within the ambient temperature range of -40
to +75 degree C, but the performance guarantee temperature
range is -40 to +55 degree C.
4. High Temperatures
DO NOT touch the body, especially fins, during operating the
Unit.
High touch temperatures may exist, depending on load
conditions.
3. RF Radiation
A radiation hazard exists if the BUC is operated with its RF
signal output unterminated.
DO NOT operate the BUC without a load or termination
attached to the RF signal output.
6. Input Level
DO NOT input an IF signal over the range of +13 dBm
maximum and a reference signal within the range of -5 to +5
dBm.
7. Operating Temperature.
5. Fan
DO NOT insert your finger into the fan to avoid injury.
DO NOT insert any objects into the fan. Keep any objects away
from the fan.
Incorrect usage may cause injury to self or others.

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The Unit is mounted outdoors must be adequately
weatherproofed.
Ensure the waveguide joints are properly sealed with the
supplied o-ring (gasket). Use self-amalgamating tape to seal
connectors and cable entry points from the connector to the
DO NOT block the fins and air flow.
Normally the Unit should be mounted with fan face down.
3. Weatherproof
2.2. Instruction Statements
1. Mounting
When attaching cable, DO tighten as connector with following
torque:
N-type connector, 0.68 to 1.13 N・m
F-type connector, 0.39 to 0.49 N・m
5. Warranty
Opening or removing any component (e.g. label, and screws)
without fan equipments or sealed area will immediately void the
warranty.
2. Connector
4. Fan
The fan has its lifetime. The fan is to be replaced with a new
one at appropriate interval.
The recommendation interval of replacement is five years.

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IM-T8318 Rev.01
Qty(2), Phillips-head Screw (M6x10)
NJT8318UN
NJT8318UF
NJT8318UNM
NJT8318UFM
NJT8318UNK
NJT8318UFK
1.
3. Packing List
NJT8318NK
NJT8318FK
NJT8318NMR
NJT8318FMR
NJT8318N
NJT8318FM
NJT8318NMK
NJT8318FMK
The Unit is shipped in a single shipping container with the following content:
NJT8318F
2.
Qty(4), Hexagon Socket Head Bolt (M4x10)
Mating MS Connector:
the only MS Connector models
1 sheet
1 unit
1 set
No.
NJT8318UNMK
NJT8318UFMK
Part Number: PT06E-14-12S (470)
*MS connector is enclosed in the shipping container
NJT8318UNMR
OR
NJT8318UFMR
4.
BUC:
Description
NJT8318NM
Accessory:
Qty(1), O-ring
Qty(1), Hexagon Wrench Key (M4)
Date sheet
Qty
3.
( 1 pc )

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4. Overview
Block Diagram
The unique features are
・High Temperature Operating:
* Operation Guarantee Temperature Range: -40 to +75 degree C
・RF Frequency Line-up:
* Universal Ku-band: 13.75 to 14.5 GHz
* Standard Ku-band: 14.0 to 14.5 GHz
・High Efficiency & Low Distortion.
* P1dB: +39 dBm min. over temperature
* IM3: -28 dBc @ Pout = +36 dBm
* Power Consumption: 80 W typ.
・Monitor & Control Line-up
* FSK Communication M&C
* RS-232C Interface Serial M&C
・Smaller Size & Lighter Weight
* Dimension: 180 (L) x 130 (W) x 80 (H) mm
* Weight: 2.4 kg
・LED Indicator
・RoHS Compliance
The Unit transmits an RF signal (Universal Ku
‐
band: 13.75 to 14.5 GHz / Standard
Ku-band: 14.0 to 14.5 GHz) output with up to 8W (+39 dBm) linear.

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This section describes appearance and outline for the Unit.
5.1. Appearance
Overall Picture
5. Physical Description

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5.2. Outline Drawing

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Assignment:
* Pin G: RS-232C TxD and Pin H: RS-232C RxD are available for
only RS-232C Interface M&C models.
* Do not connect the pins for N.C. and not using pins with the
cable wires.
FSK
Communication
M&C Signal
DC Power Input *1
MS Connector models are only
Connector Information
The Unit is required to supply +18 to
+60 V DC power via this connector.
DC Power Input *1
IF Signal Input
Reference Signal
Input
RS-232C Interface
M&C Signal
The Unit receives an IF signal (950 to
1,450 MHz or 950 to 1,700 MHz) via
this connector.
The Unit receives a reference signal
(10 MHz) via this connector.
FSK Communication M&C models are
only equipped.
RS-232C Interface M&C models are
only equipped.
The Unit receives / transmits the M&C
signal with the RS-232C interface Pin#
G, H and K in this connector.
The Unit receives / transmits the M&C
signal with the FSK modulation via this
connector.
5.3. Description of Connectors, and LEDs
Item
Description
Purpose
N-type
or
F-type
Female
Connector
The Unit is required to supply +18 to
+60 V DC power via Pin# J and K in
this connector.
Circular
Connector
(MS
Connector)
Part No.: PT02E-14-12P (025)
Mating connector: PT06E-14-12S (470)

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IM-T8318 Rev.01
Item
Description
Purpose
DO NOT apply DC voltage via both Circular Connector (MS
Connector) and N-/F-type Female Connector.
If DC voltage is applied on both connectors, it may damage the
unit or the unit may not operate properly.
*1: MS Connector models are available to apply DC voltage via Circular
Connector (MS Connector) or N-/F-type Female Connector.
LED
Indicator
Local Unlock Alarm
GREEN: L.O. locked
RED: L.O. unlocked (or no reference
signal)
WR-75
RF Output
The Unit transmits an RF signal (14.0
to 14.5 GHz or 13.75 to 14.5 GHz) via
this waveguide.
Grounded
Hole
M6 hole
Common chassis ground

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・
・
6. Installing
This section describes basic installation for the Unit.
When attaching the OMT or the filter, you should follow the following
steps:
Verify that the o-ring groove on the
waveguide flange of the Unit is clean.
Insert the enclosed o-ring (gasket)
the groove as shown.
6.1. Mounting Configuration
6.1.1. Guidelines for Attachment of OMT
Step 1:
Step 2:
Secure the OMT or the filter to the Unit using the supplied
enclosed bolts with 1.15 to 1.4 N・m torque as shown, when the
thickness of the flange of the OMT or the filter is 3.5 to 5.0
mm.
When the thickness is not 3.5 to 5.0 mm, you should prepare
Normally the Unit should be mounted with fan face down.
The Unit can be mounted in the feed horn of the satellite antenna.
6.1.2. Guidelines for Mounting
When mounting on the OMT or the filter, you should follow the following
cautions:
DO NOT block the fins and air flow.

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IM-T8318 Rev.01
・
・
・
・
Wire for Common Chassis Ground / Earthing
M&C Signal Cable
Connecting the coaxial cable is proceeded with the following steps:
The Unit receives an IF signal and a reference signal via coaxial cable from
modem, is required to supply +18 to +60 V DC power , receives an FSK
communication M&C signal.
Only input a voltage within the range indicated in specified
voltage.
DO operate at the input voltage of +18 to +60 V DC power at
the coaxial connector on the Unit.
DO NOT input an IF signal over the range of +13 dBm
maximum and a reference signal within the range of -5 to +5
dBm.
6.2. Connecting System
Power Cable
Step 1:
6.2.1. Connecting Coaxial Cable
The Unit is connected two cables:
Coaxial Cable
Connect the coaxial cable with N-type or F-type male
connectors to the coaxial connector equipped with the Unit
under following torque:
N-type connector, 0.68 to 1.13 N・m
F-type Connector, 0.39 to 0.49 N・m
Step 2:
Use self-amalgamating tape to seal connector and cable entry
points from the connector to the cable sheath.
Connecting the coaxial cable

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* Do not connect the pins for N.C. and not using pins with the cable wires.
DO NOT apply DC voltage via both MS Connector and N-/F-type
Female Connector.
If DC voltage is applied on both connectors, it may damage the
unit or the unit may not operate properly.
6.2.2. Connecting Power Cable
The Unit is required to supply +18 to +60 V DC power via power cable
from modem or a DC power supply unit with the exception of only IF
connecter supplied models.
Step 3:
Use self-amalgamating tape to seal connector and cable entry
points from the connector to the cable sheath.
Only input a voltage within the range indicated in specified
voltage.
DO operate at the input voltage of +18 to 60 V DC power at
the coaxial connector on the Unit.
Connecting the power cable is proceeded with the following steps:
Step 1:
Assemble the power cable and the supplied MS mating
connector with the following assignment:
Pin J: Prime (+24 / +48 V DC Power)
Pin K: Prime Return
Step 2:
Connect the power cable above to MS connector equipped with
a bayonet locked status.
Connecting the power cable

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OR
6.2.3. Wire for Common Chassis Ground / Earthing
Connecting the wire for common chassis ground / earthing is proceeded
with the following steps:
The Unit can be had the chassis ground of the other equipment (e.g.
antenna) in common or earthing.
Connect the grounding/ earthing wire from ground on the other
equipment or earthing point to the ground hole on connector or
waveguide sides with M6 screw.
Step 1:
Connect the grounding/ earthing wire
Connect the grounding/ earthing wire