Nera saturn bp Technical Manual

Saturn Bp Portable

Technical Manual

Saturn Bp Portable

Technical Manual

Nera SatCom AS reserves the right to change the design
and specifications of the equipment without notice.

IntroductionIntroduction

Introduction

Saturn Bp Portable ........................................................................................ 3

Connecting Up............................................................................................... 4

Connection of Optional Equipment................................................................ 4

Technical Data ............................................................................................... 5

The INMARSAT-B System............................................................................. 6

System DescriptionSystem Description

System Description

Saturn Bp Portable Communication .............................................................. 8

Signalling & Communication Channels ........................................................11

Communication Sequences......................................................................... 12

Idle State ..................................................................................................... 14

Contents

SCPC Signalling .......................................................................................... 16

Voice............................................................................................................ 18

Clearing ....................................................................................................... 20

DiagramsDiagrams

Diagrams

Block Diagram ............................................................................................. 22

Antenna Unit Interconnection Diagram........................................................ 23

MCU Interconnection Diagram .................................................................... 24

ServiceService

Service

Exploded View – Saturn Bp Trunk ............................................................... 26

Exploded View – Saturn Bp Transceiver ..................................................... 27

Replacing Trunk Parts ................................................................................. 28

List of Spare Parts ....................................................................................... 33

Saturn Bp Portable – Technical Manual

Doc. No. QLZB911025 Rev. A Infotema 5114 11/96

Service Level Functions .............................................................................. 34

List of Alarm Messages ............................................................................... 35

List of Start-up Messages............................................................................ 36

List of Terminal Status Messages................................................................ 36

List of Clear Causes .................................................................................... 37

List of Terms ................................................................................................ 40

1

2

Saturn Bp Portable – Technical Manual

IntroductionIntroduction Saturn Bp Portable

External
connector
panel

External
connector
panel

Antenna sections

Transceiver

Supporting
legs

Display Handset

Internal
connector
panel

Introduction

Saturn Bp is a portable terminal for the Inmarsat-B system. It
provides a quickly established and very reliable link to terrestrial
networks.

The complete system including the four-section antenna, Main
Control Unit and RF equipment is packed in a compact and
robust case. Main connectors and telephone handset are easily
accessed from a compartment at one end. It is equipped with
wheels for easy transportation and total weight is only 18 kg.

Saturn Bp can be connected to a wide range of AC or DC supply
voltages and has an exceptional low power consumption. It
operates over a wide temperature range, withstands rain and
snow and is ideal for tough environments.

Features

• All equipment integrated in a lockable case.

• Low weight, small size.

• Antenna and RF electronics integrated may be remoted up
to 90 m dependent on type of coax cable.

Basic Equipment

Display Handset

Optional Equipment

• Wide range AC and DC operation.

• Additional outlets for telephone, fax and data.

• Last number redial and short number dialing via alpha­numeric editing and recall facilities.

• Handset with built-in display and keypad for dialling, system
control and diagnostics, short number editing and signal
strength read-out.

• Design based on proprietary custom ASICs and Digital
Signal Processors giving stable trouble-free operation.

Optional equipment

• Standard DTMF telephones (max 5)

• Telefax (for connection to telephone inlet)

• PC for telex operation

• PC for High Speed Data transfer, 56/64 kbps or 9.6 kbps

modem communication

5 standard
telephones

Main Parts

Telefax

(replacing a

telephone) PC (Data)

Printer

PC (Telex)

• Printer

Saturn Bp Portable – Technical Manual

3

Connecting Up

External
connector
panel

Alternative external
connection to DTE
port.

Connection of additional
telephones/telefaxes
through special cable.

Internal
connector
panel

DTE

AUX

TEL.1

2W

PC

PRINTER

Telex

Centronics

Telephone

Telefax

with keypad

Telefax

without keypad

DATA

TLF.

UN ADAPTER 401

Telefax

adapter

TEL.

2-5

2W

DC

12V/24V

DTE

AC

100-250V

50-60 Hz

ON

OFF

ANTENNA

AC FUSE

6.3A SLOW

CONNECT AC TO EARTHED OUTLET ONLY!

Printer

w/RS232

Interface Card

RS232

External connector panel

Power
ON/OFF

ON

Connection of Optional Equipment

IntroductionIntroduction

Introduction

TEL.

2-5

2W

OFF

DC

12V/24V

AC

100-250V

50-60 Hz

ANTENNA

DTE

AC FUSE

6.3A SLOW

CONNECT AC TO EARTHED OUTLET ONLY!

Power consumption:

- receive: 28 W

- transmit: 110 W (total)

Caution! The DC supply must be connected with correct polarity.

Display
Handset

+ RED

- BLACK

90 - 276 VAC

(47 - 400 Hz)

w/ground

11 - 34 VDC

4

Saturn Bp Portable – Technical Manual

IntroductionIntroduction

Introduction

Technical Data

General

Saturn Bp Portable complies with the INMARSAT-B System Definition Manual for a Land
Mobile Earth Station.

Operational Characteristics

• Assembly time < 60 seconds

• Antenna separation up to 90 meters

• 99 short numbers with alphanumeric names

• Last number redial

• Voice coding at 16 kbps

• Group III telefax at 9.6 kbps

• High Speed Data transfer at 64 kbps or 56 kbps

• Data modem transfer up to 9.6 kbps

Power Supply

AC power:

DC power:
Power consumption:

90 VAC - 276 VAC / 47-400 Hz
(operative when connected to both AC an DC supply)

11 - 34 VDC
Typically 28 W receive, 110 W transmit (total)

Interfaces

MCU – AU:
Display Handset:
External connector panel:

Internal connector panel:

Coaxial cable with TNC-connectors
7-pin circular (AMP) connector (female)

• coaxial antenna connector

• 3-pin circular (AMP) coded connector (male) for external DC supply

• 3-pin circular (AMP) coded connector (male) for AC power

• 10-pin circular (AMP) connector (female) for standard telephones or
telefax (TEL. 2-5)

• 14-pin circular (AMP) RS232 Data Terminal Equipment connector (female)

• 4-pin RJ11 connector for standard telephone (TEL.1)

• 25-pin RS232 Data Terminal Equipment connector (female)

• 9-pin PC connector (female)

• 9-pin printer connector (male)

Display Handset

LCD display: 2 x 12 characters
Weight: 0.35 kg
Dimensions in milimetres: W: 56, H: 214, D:47

Carrying Case

Material
Contents:

Weight :
Dimensions in millimetres:

Moulded polyethylene case

• Main Control Unit (MCU)

• Antenna and RF units (integrated)

• Display Handset

• Compass, and

• Cables
18 kg
W: 630, H: 210, D: 480

System Specifications

Transmit frequencies:
EIRP:
RF channel spacing:
Antenna:
Antenna size:
Polarization:
G/T:
Controls:

1626.5 MHz - 1646.5 MHz
33/25 dBW
20 kHz
Four-section plane

0.6 m
Right-hand circular (RHC)

- 4 dB/K
On/off switch

Environmental Conditions

Operating temperature:
Storage temperature:
Rain:
Shock:

-25°C to +55°C

-50°C to +80°C

100 mm/hour
90 cm drop

Electromagnetic Compatibility

Radiated:
Conducted:

2

EN55022
EC 801

Saturn Bp Portable – Technical Manual

5

The INMARSAT-B System

System DescriptionSystem Description

System Description

Inmarsat

The INMARSAT-B system offers high quality 16 kbps
voice communication, and 9.6 kbps telefax and data
transmission.

The benefit of the INMARSAT system is its high
capacity, and the rapid and reliable connection
between the land based (fixed) users and the Mobile
Earth Stations (MESs).

The large number of Land Earth Stations (LESs) in
operation allows the operator to select the one giving
the lowest cost to a particular land based subscriber.

Each satellite region is under the control of a Net-
work Coordinating Station (NCS), which controls
and monitors the traffic between the MESs and the
LESs.

See figure 1.

Services

• Duplex telephone calls – basic telephony services

• Simplex telephone calls – LES-to-mobile only

• Duplex telefax – CCITT Group 3 facsimile servic­es, 9.6 kbps

• Simplex telefax calls – LES-to-mobile only

• Simplex group ID addressing – to a selected
group of mobiles

• Simplex area addressing – to all mobiles within a
specific geographic area

• Duplex data communication – Hayes compatible

9.6 kbps data service

System Satellites

The satellites are positioned in a geostationary orbit
above the equator at approximately 35700 km alti­tude.

In geostationary orbit, each satellite moves at the
same rate as the earth, and so remains in the same
relative position to the earth, above equator, allowing
the antenna to have line-of-sight communication with
the satellite.

The Saturn Bp Portable can communicate via the
four satellites covering one Ocean Region each.

The positions of the system satellites are shown in
figure 2.

Transmission frequencies

The INMARSAT-B MESs operate in the following
frequency bands:

Calls from Saturn B terminals 1626.5 MHz — 1646.5 MHz
Calls to Saturn B terminals 1530.0 MHz — 1559.0 MHz

A large number of channels are available (20 kHz
channel separation), offering either 16 kbps voice
communication, or 9.6 kbps duplex data communica­tion.

Duplex communication uses two channel frequen­cies, one in each direction.

The LESs provide interface to the international
networks for telephony and data: PSTN (Public
Switched Telephone Networks) and PSDN (Packet
Switched Data Networks).

NCS: Network Coordinating Station
LES: Land Earth Station
MES: Mobile Earth Station

(Saturn B terminal)

TELEPHONE

Re

P

7

–

4

8

1

5

9

✳

2

6

0

3

#

R

NETWORKS

TELEX
NETWORKS

LES

DATA
NETWORKS

MES

NCS

MES

35700 km

Pacific Ocean Region

Atlantic Ocean Region (West)

Atlantic Ocean Region (East)

55.5°W

179°E

Q

U

E

A

T

O

12000 km

EARTH

R

Indian Ocean Region

63°E

Figure 1.
Overview of the Inmarsat-B system.

6

18.5°W

Figure 2.
Four satellites in a geostationary orbit above the

equator at approx. 35700 km altitude.

Saturn Bp Portable – Technical Manual

System DescriptionSystem Description

System Description

The INMARSAT-B System Cont’d

Channel numbers

All radio frequency channels used by the MES are
assigned a particular hexadecimal number which is
translated into frequencies on L-band between MES
and satellite, and to C-band between LES and satel­lite.

Channel no. 32C8 for an MES always designates:

1660.5000 MHz transmitting frequency

1542.5000 receiving frequency

Channel Types

The Inmarsat-B System differs between physical and
functional channels. A physical channel refers to one
frequency, one carrier. Every frequency can have
several functional channels muliplexed on it. Each
functional channel is named after the originating unit.
The NCS TDM will in the initial system multiplex the
NCSC for Bulletin Boards and Call Announcement,
the NCSA for Channel Assignments and NCSI for

Interstation information to the LES on the same
physical channel. When the system expands, spot
beams and Ocean Region Registration will be intro­duced using the functional channels NCSS and
NCRA multiplexed on the NCS TDM. The traffic on
one TDM may then be to heavy and some of the
functional channels may be moved to another NCS
TDM frequency.
The physical SCPC channels are always divided into
three functional channels. During call set up and
release the whole bandwith is used for signalling and
the functional channel is called MES-SIG/LES-SIG.
During speech or data phase, the signalling part of
the channel is called VSUB or DSUB and the service
carrying part is called MESV/LESV or MESD/LESD.

Requests and assignments

The Network Coordinating Station in each Ocean
Region continually transmits to the MESs within its
region on the NCS Common Signalling Channel
(NCSC).

When selecting a particular Ocean Region, the MES
automatically tunes its receiver to the NCSC fre­quency, and awaits System Information from the
NCS.

The System Information (Bulletin Board) includes
available NCS/LES channel frequencies, location of
satellites, operational status, etc.

When the NCS sends a Call Announcement, detail­ing the channel to which the MES should tune to
receive the call.

When the MES user dials a subscriber’s international
telephone number, the MES transmits an Access
Request to the NCS via the LES, and awaits a Chan­nel Assignment from the NCS.

Telephone communication

For telephone communication a Frequency Division
Multiple Access (FDMA) is used, in a Single Channel
Per Carrier (SCPC) system. The voice communica­tion occupies two (unpaired) channel frequencies.

The telephone channels are controlled by NCS which
assigns a free channel upon request. When a chan­nel has been assigned it is controlled by LES until
end of call.

Facsimile communication

The Saturn Bp telephone ports may be configured for
telefax communication. The transmission is telefax
only, and is performed at a rate of 9.6 kbps.
Telefaxes without keypad may be connected via an
adapter.

Data communication

The data service allows the Saturn Bp user to com­municate at up to 56/64 kbps, via the public switched
network, to fixed modems and data terminals.

Figure 3.
Communication path.

Saturn Bp Portable – Technical Manual

Saturn Bp
Portable

Display handset
Standard telephones

Telefax
Data/modem communication (option)

Path established by

Saturn Bp terminal

via satellite.

Land Earth

Station

LES

Telefax

PC
w/modem

Public
Telephone
Network

Re

P

7

–

4

8

1

5

9

✳✳

2

6

0

3

#

R

7

Calls from Mobiles

PSTN

6

1

2

3

4

5

#

7

8

9

*

0

DEL

FUNC

ALPHA

ENTER

MORE/
HELP

SHIFT

LES

ON/OFF

DIAL 00+INTL
TEL . NO . + f

00 47 66 84 47 00 f

Calls from Mobiles

Forward/return ID

123456/ABCDEF

OI1Type

Voice

Commissioned

Yes

66 84 47 00

LES

Return ID
Type

2

ABCDEF
Voice

Access Request

When the MES originates a call it starts
by sending a request to the LES. This
initial request for service contains the
MES Return ID and type of service.
Saturn Bp incorporates a configuration
table for originating information,
accessible through the “Configure Ports”
function (70). This table contains one
entry for every physical connector with
the Originating Id and type of service for
that specific connector.

LES Translation Table

MES Translation Table

1 2 3
4 5 6
7 8 9

0 #

P S Re

Fwd ID

Rx ch.
Tx ch.

123456

8192
12000

Channel Assignment

Connector

Service/
Originating Id

Phone/OI=1
Phone/OI=2
Fax/OI=17
Default=no OI
Default=no OI
Default=no OI

HANDSET
TEL.1 (int.)
TEL.2 (ext.)
TEL.3 (ext.)
TEL.4 (ext.)
TEL.5 (ext.)

LES=2

☞

Re

P

–

7

8

9

4

5

6

1

2

3

✳

0

#

R

To initiate a call, the user dials the international call prefix 00
prior to the telephone number for the required destination.
The LES code is also included, either automatically when
using the default LES, or manually selected from the Display
Handset.

The mobile automatically includes information to identify the
MES and the particular end terminal that originates the call.
Saturn Bp Portable has six voice connections: the Display
Handset and five connectors (one internal and four external)
that are normally configured for standard telephone and a
telefax.

The LES uses the end terminal identifying information (OI)
for billing purposes.

The mobile transmits the dialling information on a channel
specially assigned by the NCS, to the LES, which also has
been instructed to tune to the same channel.

On receiving the call, LES routes it over the public telecom­munications networks to the intended destination. When the
destination responds, for example by the dialled subscriber
lifting the handset, the call proceeds.

System DescriptionSystem DescriptionSaturn Bp Portable Communication

System Description

The illustration of the call initiation is simplified.

8

Saturn Bp Portable – Technical Manual

System DescriptionSystem Description

Re

P

–

7

8

9

4

5

6

1

2

3

✳

0

#

R

6

1

2

3

4

5

#

7

8

9

*

0

DEL

FUNC

ALPHA

ENTER

MORE/
HELP

SHIFT

LES

ON/OFF

DIAL 00+INTL
TEL . NO . + f

Calls to Mobiles

00 871 681234567

When requested to call a specific IMN, LES translates
the IMN to a Forward ID and a Destination Id (DI). The
request is then sent to the MES which translates the
Forward ID and the DI to a physical line to call.

To "connect" a Destination Id to a physical line,
SaturnBp incorporates a translation table accessible
through the “Incoming call route” function (71).
This table can contain up to 100 DI translations, and
each DI in use is programmed with type of call and
destination.

A call is not allowed to be routed to a connector that is
configured to another type than the DI specifies.
A telephone DI can only be routed to a phone type
connector type. A facsimile DI can only be routed to a
fax type connector.

Forward/return ID

123456/ABCDEF
123456/ABCDEF
123456/ABCDEF

DI

01
02
17

Type

Voice
Voice
Fax

IMN

681234567
681234789
681234890

LES Translation Table

MES Translation Table

☞

1 2 3
4 5 6
7 8 9

0 #

P S Re

Connector

Service/
Originating Id

Phone/OI=1
Phone/OI=2
Fax/OI=17
Default=no OI
Default=no OI
Default=no OI

HANDSET
TEL.1 (int.)
TEL.2 (ext.)
TEL.3 (ext.)
TEL.4 (ext.)
TEL.5 (ext.)

LES

Return ID
Type

2

ABCDEF
Voice

Response

LES

Fwd ID
Type
DI

2

123456
Voice
1

Call announcement

LES=2

System Description

Calls to Mobiles

Calls are made as ordinary international (Satellite) calls
where each Ocean Region has an international country
code. If an area is covered by more than one satellite, it is
necessary that the caller knows which satellite (Ocean
Region) the mobile is tuned to.

The international codes to the four Ocean Regions are as
follows:

Atlantic Ocean East Region: 871
Pacific Ocean Region: 872
Indian Ocean Region: 873
Atlantic Ocean West Region: 874

The illustration of the call initiation is simplified.

Saturn Bp Portable Communication Cont’d

Saturn Bp Portable – Technical Manual

9

System DescriptionSystem Description

System Description

10

Saturn Bp Portable – Technical Manual

NCS Common Ch (NCSC)

NCS Assignment Ch (NCSA)

NCS Registration (NCRA)

NCS Spot beam (NCSS)

MES

Saturn Bp
Portable
terminal.

MES Request Ch (MESRQ)
MES Region Registration Ch (MESRR)
MES Call Acknowledge Ch (MESCA)
SCPC In-band Signalling (MESSIG)
SCPC In-band Signalling (LESSIG)

SCPC Voice (MESV/VSUB)
SCPC Voice (LESV/VSUB)

SCPC Data (MESD/DSUB)
SCPC Data (LESD/DSUB)

LES

The Land Earth Station
routes messages to/from
the MESs within the
coverage area of one of
the four Inmarsat
satellites.

NCS/NCS
Signalling Links

NCS

The Network Coordinating
Station controls the satellite
resources to LESs and
MESs within a single
satellite coverage area.

MES Region Registration Ch (MESRR)

MES Response Ch (MESRP)

MES Request Ch (MESRQ)

NCS Interstation Ch (NCSI)

LES Interstation Ch (LESI)

Signalling Channels
Communication Channels

(SCPC = Single Channel Per Carrier)

Public Switched
Telephone
Networks

ISDN
Packet Switched

Data Networks

System DescriptionSystem Description

System Description

Signalling & Communication Channels

Signalling Channels

Designation Transmission Type of information

NCSI
LESI

NCSC
MESRP

NCSA

MESRQ

MESCA

NCSS

MESRR
NCRA

MESSIG
LESSIG

Continuous TDM

TDM Bulletin Board announcements.
TDMA MES responses

Continuous TDM Assigns SPCS channels
Slotted Aloha Request from MES to LES
Slotted Aloha Acknowledges shore-originated

Continuous TDM One frequency per spot beam;

Slotted Aloha Registration signal to LES/NCS.
Continuous TDM Acknowledgement from NCS to

SCPC In-band signalling

Bi-directional signalling information
between LES and NCS

simplex calls.

enables an MES to identify beam
serving location.

MES

Communication Channels

Designation Transmission Type of information

LESV
MESV

LESD
MESD

SCPC with Duplex 16 kbps voice
VSUB sub-band communication
signalling

SCPC with Duplex 9.6 kbps data
VSUB sub-band communication
signalling

Saturn Bp Portable – Technical Manual

11

Set-up

SCPC In-band Signalling

SCPC Voice Mode

Listens to NCS common
channel.

NCS Common Channel

MES number from
telephone network.

Validates MES
authorization.
Adds MES to LES
busy list. "Request
for Call
Announcement" SU.

NCSI

NCSA

LESI

NCSC

Transmits "Channel
Assignment" SU.
NSCA: Once for
maritime MES. Three
times for Land
mobile MES.

MESRP

Transmits "MES
Response" SU on the
TDMA channel.

Adds MES to NCS
busy list.

"Call Announcement"
SU. Repeated once if
no response from
Land Mobile MES.

MES

Mobile Earth Station

LES

Land Earth Station

NCS

Network

Coordination

Station

For call release, see

separate diagram

Sets SCPC channel in "In­band Signalling" mode.
Transmits "Scrambling
Vector Advice" SU
repeatedly.

MES-SIG

Returns
"Scrambling Vector
Acknowledge" SUs
repeatedly.

LES-SIG

RINGING

Ringing tone
(generated by LES)

MES-SIG

Transmits "Return Carrier
Identifier" SUs.

Switches to MESV/SUB
mode

OFF-HOOK

Transmits "Connect" SUs

"Fill-in" SUs when
quiet.
Maintains burst SU
every 5 secs to
prevent clearing by
LES.

Transmits speech
and "MES Connect"
SUs continuously.

SUB

SUB

INMARSAT-B

Fixed-originated Duplex Telephone Call

6

1

2

3

4

5

#

7

8

9

*

0

DEL

FUNC

ALPHA

ENTER

MORE/
HELP

SHIFT

LES

ON/OFF

DIAL 00+INTL
TEL . NO . + f

6

1

2

3

4

5

#

7

8

9

*

0

DEL

FUNC

ALPHA

ENTER

MORE/
HELP

SHIFT

LES

ON/OFF

DIAL 00+INTL
TEL . NO . + f

6

1

2

3

4

5

#

7

8

9

*

0

DEL

FUNC

ALPHA

ENTER

MORE/
HELP

SHIFT

LES

ON/OFF

DIAL 00+INTL
TEL . NO . + f

ESC

☞

Re

P

–

7

8

9

4

5

6

1

2

3

✳

0

#

R

Re

P

–

7

8

9

4

5

6

1

2

3

✳

0

#

R

INMARSAT-B

MES-originated Duplex Telephone Call

System DescriptionSystem DescriptionCommunication Sequences

System Description

DIAL 00+INTL
TEL . NO . + f

1

2

3

4

5

Listens to NCS common

6

7

8

9

0

*

#

DEL

FUNC

ALPHA

ENTER

MORE/

channel.

HELP

SHIFT

LES

ON/OFF

ESC

☞

OFF-HOOK

MES operator dials
subscriber’s international
telephone number.
Transmits "Access Request"
SU.

Set-up

Sets SCPC channel in "In­band Signalling" mode.

Transmits "Service Address"
SUs and "Scrambling Vector
Advice" SU alternately.

SCPC In-band Signalling Mode

SCPC Voice Mode

"Return Carrier Identifier"
SUs

Changes to MESV/SUB
mode

DIAL 00+INTL
TEL . NO . + f

1

2

3

4

5

6

7

8

9

"Ringing tones"

0

*

#

DEL

FUNC

ALPHA

ENTER

MORE/
HELP

SHIFT

LES

ON/OFF

DIAL 00+INTL
TEL . NO . + f

1

2

3

4

5

6

7

8

9

0

*

#

ENTER

LES

Transmits "MES
Connect" SUs.

DEL

FUNC

ALPHA

MORE/
HELP

SHIFT

ON/OFF

Transmits speech
and "MES Connect"
SUs continuously.

12

MES

Mobile Earth Station

NCS Common Channel

LES Voice Channel

For call release, see

separate diagram

MESRQ

MES-SIG

LES-SIG

MES-SIG

Re

P

7

–

4

8

1

5

9

✳

2

6

0

3

#

R

LESV & SUB

and sub-band

signalling

SUB
SUB

SUB

LES

Land Earth Station

Adds MES to LES
busy list.

"Request for Channel
Assignment" SU

Returns "Scrambling
Vector Acknowledge"
SU.

Changes to
LESV/SUB mode.

Terrestrial call set-up
procedure.

Transmits "Ringing
Tone" & "Fill-in" SUs.

Sends answer signal
& "LES Connect" SUss

"Fill-in" SUs when
quiet.
Maintains burst SU
every 5 secs to
prevent clearing by
MES.

LESI

NCSI

NCSA

NCS

Network

Coordination

Station

Adds MES to NCS
busy list.

Transmits "Channel
Assignment" SU.
NCSA:
Once for maritime
MES. Three times for
Land mobile MES.

Saturn Bp Portable – Technical Manual

System DescriptionSystem Description Communication Sequences Cont’d

System Description

INMARSAT-B

MES or Fixed Call Release

Mobile Earth Station

DIAL 00+INTL
TEL . NO . + f

1

2

3

4

5

6

7

8

9

0

*

#

DEL

FUNC

ALPHA

ENTER
MORE/
HELP

SHIFT

LES

ON/OFF

ESC

☞

ON-HOOK.
MES switches to "In-band

Voice Mode

signalling" mode and sends
6 frames of "Channel
Release" SUs,
then turns off carrier.

Signalling Mode

MES

MES-SIG

LES

Land Earth Station

Clear forward.
Observes MES

carrier off, then turns
off LES carrier and
sends "Notification of
Channel Release"
SU to NCS.

Removes MES from
LES busy list.

LESI

NCS

Network

Coordination

Station

Removes MES from
NCS busy list, and
updates channel
status table.

DIAL 00+INTL
TEL . NO . + f

1

2

3

4

5

6

7

8

9

0

*

#

DEL

FUNC

ALPHA

ENTER
MORE/
HELP

SHIFT

LES

ON/OFF

Voice Mode

ESC

☞

ON-HOOK.

MES switches to "In-band
signalling" mode and
sends 6 frames of
channel release SUs,
then turns carrier off.

Signalling Mode

Terrestrial side

ON-HOOK

Re

P

7

–

4

8

1

5

9

✳

2

6

0

3

#

R

LES-SIG

MES-SIG

Switches to "In-band
signalling" mode and
sends channel
release SUs.
(Delay up to 2 min if
called party)

Observes MES
carrier off, then turns
off LES carrier and
sends "Notification of
Channel Release"
SU to NCS.

Removes MES from
LES busy list.

LESI

Removes MES from
NCS busy list, and
updates channel
status table.

Saturn Bp Portable – Technical Manual

13

Idle State

MAIN CONTROL BOARD

System DescriptionSystem Description

System Description

BDE

DIAL 00+INTL
TEL . NO . + f

1
4
7

*

FUNC

MORE/
HELP

Digital Signal Processor Sub-system

TXIF

Transmitter

2.5 MHz

2

3

5

6

8

9

0

#

DEL

ALPHA

ENTER

SHIFT

LES

ON/OFF

Telephony
Interface

Computer
Codec

Local
Oscillator
Synthesizer

RF Sub-system

TX Channel

1626.5 -

1660.5 MHz

Combiner/
splitter

RXIF
12 MHz

Receiver

RX Channel
1525 ­1559 MHz

14

Saturn Bp Portable – Technical Manual

System DescriptionSystem Description Idle State

System Description

ADE

Right Hand Circular

polarized RF signal

Forward Direction

RF Units

f = 1525 - 1559 MHz

MES NCS

NCS Common Channel (NCSC)

BPSK Encoded Signal

(BPSK = Binary Phase Shift Keying)

shift

shift shift

shiftshift

FRAMING

BITS

32

t

Approx. 264 ms

RATE - 1/2 FEC CODED BITSTREAM

1552 bits

HPA

FRAMING

BITS

32

Duplexer

Combiner/splitter

RATE - 1/2 FEC CODED BITSTREAM

LNA

1552 bits

FRAMING

BITS

32

RATE - 1/2 FEC CODED BITSTREAM

1552 bits

SIGNALLING UNIT – SU

BIT No.

8 7 6 5 4 3 2 1

Message type

MES ID

LES ID

priorityspare spare

service nature service type

channel parameters

destination terminal ID

spare message number

CCITT CRC

M1

CALL ANNOUNCEMENT

Saturn Bp Portable – Technical Manual

Approx. 264 ms

7

00

MULTI

FRAME

8 bits96 bits

H

SPARE

PRIORITY

01

NATURE

SERVICE

H

TYPE

SRVICE

01

H

CHANNEL

PARAMETERS

01

H

DESTINATION

TERMINAL ID

00

SPARE

H

NUMBER

MESSAGE

54

H

(CYCLIC REDUNDENCY CHECK)

CCITT CRC

26

H

3

DD

TIMESLOT

96 bits

H

TIMESLOT

TIMESLOT

0

81

1
2
3
4
5
6
7
8
9
10
11
12

OCTET No.

96 bits

Octet No. 1 Octet No. 2 Octet No. 3 Octet No. 4 Octet No. 5 Octet No. 6 Octet No. 7 Octet No. 8 Octet No. 9 Octet No. 10 Octet No. 11 Octet No. 12

100000011110110011011101000110000000100100000000000000010000000100000001000000000101010000100110

MESSAGE

81

TYPE

96 bits

H

TIMESLOT

1

96 bits

EC

TIMESLOT

2

96 bits

H

MES ID

4

TIMESLOT

96 bits

18

H

TIMESLOT

5

96 bits

09

LES ID

TIMESLOT

6

H

SPARE

SIGNALLING UNIT = 12 "OCTETS" = 96 BITS

EXAMPLE: CALL ANNOUNCEMENT (TYPE 81

)

H

15

SCPC Signalling

MAIN CONTROL BOARD

System DescriptionSystem Description

System Description

BDE

DIAL 00+INTL
TEL . NO . + f

1
4
7

*

FUNC

MORE/
HELP

Digital Signal Processor Sub-system

TXIF

Transmitter

2.5 MHz

2

3

5

6

8

9

0

#

DEL

ALPHA

ENTER

SHIFT

LES

ON/OFF

Telephony
Interface

Computer
Codec

Local
Oscillator
Synthesizer

RF Sub-system

TX Channel

1626.5 -

1660.5 MHz

Combiner/
splitter

RXIF
12 MHz

Receiver

RX Channel
1525 ­1559 MHz

16

Saturn Bp Portable – Technical Manual

System DescriptionSystem Description SCPC Signalling

System Description

ADE

Right Hand Circular

Forward Direction

MES LES

SCPC Channel (Single Carrier Per Channel)

In-band Signalling Mode

RF Units

f = 1525 - 1559 MHz

Duplexer

polarized RF signal

O-QPSK Encoded Signal

(O-QPSK = Offset Quadrature Phase Shift Keying)

SIGNALLING UNIT – SU

8 7 6 5 4 3 2 1

SCRAMBLING VECTOR ACKNOWLEDGE

BIT No.

Message type

MES ID

LES ID

spare

CCITT CRC

M21

95

HPA

0°+90°+270°+180° 0°+90°+270°+180°

t

LNA

Combiner/splitter

240 ms240 ms 24 ms

CONTIN.

WAVE
96 bits

1
2
3
4
5
6
7

OCTET No.

8
9
10
11
12

Octet No. 1 Octet No. 2 Octet No. 3 Octet No. 4 Octet No. 5 Octet No. 6 Octet No. 7 Octet No. 8 Octet No. 9 Octet No. 10 Octet No. 11 Octet No. 12

100101011110110011011101000110000000100111110001101111000000011001111001110101010100101000001001

95

H

TYPE

BIT

TIMING

64 bits

* Unique Word:
0111 1000 1001

for 1st subframe, and
1000 0111 0110

for 2nd, 3rd and 4th
subframe (compliment)

EC

H

DD

H

MES IDMESSAGE

IN-BAND SIGNALLING FRAME

CW

24 bits

1920 bits

* UW

24 bits

Before FEC
coding

18

H

SUB

32 bits

60 ms 60 ms 60 ms 60 ms

SU

SUBFRAME - 1

60 ms

FLUSH

8

bits

DUMMY

6 bits

09

H

LES ID

IN-BAND SIGNALLING FRAME

SU

SUBFRAME - 2

SU1SU1

384 bits

96 BIT

SIGNALLING UNIT

F1

SU1

H

6 bits

BC

1920 bits

FLUSH

8

bits

DUMMY

H

(Random binary bits)

SU

SUBFRAME - 3

06

H

SPARE

SUBFRAME - 4

79

H

SU

D5

H

n x 240 ms

4A

H

(CYCLIC REDUNDENCY CHECK)

CCITT CRC

09

H

LES_SIG
SIGNALLING
CHANNEL

END OF

DATA

192 bits

Saturn Bp Portable – Technical Manual

SIGNAL UNITS = 12 "OCTETS" = 96 BIT SIGNALLING UNIT.

EXAMPLE: SCRAMBLING VECTOR ACKNOWLEDGE

17

Voice

MAIN CONTROL BOARD

System DescriptionSystem Description

System Description

BDE

DIAL 00+INTL
TEL . NO . + f

FUNC

MORE/
HELP

Digital Signal Processor Sub-system

TXIF

Transmitter

2.5 MHz

1

2

3

4

5

6

7

8

9

0

*

#

DEL

ALPHA

ENTER

SHIFT

LES

ON/OFF

Telephony
Interface

Computer
Codec

Local
Oscillator
Synthesizer

RF Sub-system

TX Channel

1626.5 -

1660.5 MHz

Combiner/
splitter

RXIF
12 MHz

Receiver

RX Channel
1525 ­1559 MHz

18

Saturn Bp Portable – Technical Manual

System DescriptionSystem Description Voice

System Description

ADE

Right Hand Circular

Return Direction

MES LES

SCPC channel (Single Carrier Per Channel)

Sub-band

RF Units

f = 1626.5 - 1660.5 MHz

Duplexer

polarized RF signal

OQPSK Encoded Signal

(OQPSK = Offset Quadrature Phase Shift Keying)

0° +90° +270° +180°

0° +90° +270° +180°

HPA

t

LNA

Combiner/splitter

n x 240 ms 240 ms 240 ms24 ms

SIGNALLING UNIT – SU

8 7 6 5 4 3 2 1

MSB

spare

BIT No.

Message type

MES ID

LES ID

spare

MES receive

channel number

scrambling vector

CCITT CRC

M25

MES CONNECT

LSB

8A

END OF

DATA

192 bits

60 ms 60 ms 60 ms 60 ms
VOICE

SUBFRAME - 4

1
2
3
4
5
6
7

OCTET No.

8
9
10
11
12

Octet No. 12 Octet No. 11 Octet No. 10 Octet No. 9 Octet No. 8 Octet No. 7 Octet No. 6 Octet No. 5 Octet No. 4 Octet No. 3 Octet No. 2 Octet No. 1

101001111000010101001110011101110001110001001100000000000000100110001010110110001001111110011001

A7

H

(CYCLIC REDUNDENCY CHECK)

CCITT CRC

85

H

4E

H

SCRAMBLING VECTOR

SPARE

77

H

21

H

CHANNEL NUMBER

SUBFRAME - 3

4C

VOICE FRAME

VOICE

H

1920 bits

00

H

SPAREMES RECEIVE

VOICE

SUBFRAME - 2

8 bits

8 bits

09

H

LES ID MES ID MESSAGE

VOICE

SUBFRAME - 1

DUMMY

DUMMY

8A

H

VOICE FRAME

1920 bits

VOICE FIELD

384 bits

VOICE FIELD

384 bits

Digital input from

voice encoder

D8

H

60 ms

9F

8 bits

6 bits

H

TIMING

SUB

32 bits

FLUSH

SUB

24 bits

DUMMY

BIT

CONTIN.

64 bits

TYPE

WAVE
96 bits

* Unique Word:
0111 1000 1001

for 1st voice frame, and
1000 0111 0110

for 2nd, 3rd and 4th
subframe (compliment)

* UW

24 bits

24 bits

Scrambled

MES_SIG
SIGNALLING

99

CHANNEL

H

CW

Saturn Bp Portable – Technical Manual

SIGNALLING UNITS = 12 "OCTETS" = 96 BITS = 24 BITS FROM EACH OF THE 4 VOICE FRAMES

EXAMPLE: MES CONNECT

19

Clearing

MAIN CONTROL BOARD

System DescriptionSystem Description

System Description

BDE

DIAL 00+INTL

TEL . NO . + f

1
4
7

*

FUNC

MORE/
HELP

Digital Signal Processor Sub-system

TXIF

Transmitter

2.5 MHz

2

3

5

6

8

9

0

#

DEL

ALPHA

ENTER

SHIFT

LES

ON/OFF

Telephony
Interface

Computer
Codec

Local
Oscillator
Synthesizer

RF Sub-system

TX Channel

1626.5 -

1660.5 MHz

Combiner/
splitter

RXIF
12 MHz

Receiver

RX Channel
1525 ­1559 MHz

20

Saturn Bp Portable – Technical Manual

System DescriptionSystem Description Clearing

System Description

ADE

Right Hand Circular

Return Direction

MES LES

SCPC channel (Single Carrier Per Channel)

In-band Signalling Mode (CLEARING)

RF Units

f = 1626.5 - 1660.5 MHz

Duplexer

polarized RF signal

OQPSK Encoded Signal

(OQPSK = Offset Quadrature Phase Shift Keying)

0° +90° +270° +180°

0° +90° +270° +180°

HPA

LNA

t

Combiner/splitter

n x 240 ms 240 ms 240 ms24 ms

SIGNALLING UNIT – SU

8 7 6 5 4 3 2 1

cause class cause location

spare cause value

MSB

BIT No.

Message type

MES ID

LES ID

coding

std.

spare

MES transmit

channel number

CCITT CRC

M10

CHANNEL RELEASE

8A

LSB

END OF

DATA

192 bits

60 ms 60 ms 60 ms 60 ms

SU

SUBFRAME - 4

1
2
3
4
5
6
7

OCTET No.

8
9
10
11
12

Octet No. 12 Octet No. 11 Octet No. 10 Octet No. 9 Octet No. 8 Octet No. 7 Octet No. 6 Octet No. 5 Octet No. 4 Octet No. 3 Octet No. 2 Octet No. 1

1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0

CF

H

(CYCLIC REDUNDENCY CHECK)

CCITT CRC

3B

H

21

H

MES TRANSMIT

CHANNEL NUMBER

4C

H

00

H

SPARE

IN-BAND SIGNALLING FRAME

SUBFRAME - 3

11

H

SPARE

CODING

STANDARD

SU

VALUE

CAUSE

1920 bits

00

H

CLASS

CAUSE

CAUSE

SU

SUBFRAME - 2

FLUSH

8

bits

DUMMY

6 bits

09

LES ID MES ID MESSAGE

LOCATION

SU1SU1

384 bits

96 BIT

SIGNALLING UNIT

H

IN-BAND SIGNALLING FRAME

SU

SUBFRAME - 1

60 ms

SU1

8

bits

SUB

32 bits

FLUSH

1920 bits

* UW

24 bits

Before FEC
coding

DUMMY

6 bits

9F

H

CW

24 bits

* Unique Word:
0111 1000 1001

for 1st subframe, and
1000 0111 0110

for 2nd, 3rd and 4th
subframe (compliment)

BIT

TIMING

64 bits

8A

H

TYPE

CONTIN.

WAVE
96 bits

SUB-BAND
SIGNALLING
CHANNEL

Saturn Bp Portable – Technical Manual

SIGNAL UNITS = 12 "OCTETS" = 96 BIT SIGNALLING UNIT.

EXAMPLE: SCPC "IN-BAND SIGNALLING" MODE (CHANNEL RELEASE)

21

DiagramsDiagramsBlock Diagram

Diagrams

Antenna UnitMain Control Unit

External

Connectors

Telephone
or Telefax
(TEL. 2-5)

DIAL 00+INTL
TEL . NO . + f

1

2

3

4

5

6

7

8

9

0

*

#

DEL

FUNC

ALPHA

ENTER

MORE/
HELP

SHIFT

LES

ON/OFF

Display

Handset

DTE

(Modem)

Internal

Connectors

Telephone

or Telefax

(TEL. 1)

DTE

(Modem)

Telephony Interface

Subscriber

Selection

&

Interface

AUX

&

Handset

Interface

Access & Control

Sub-system

PCM

Codec

64 kbps

Data

Processor

&

Memory

Main Control Board

DSP Sub-system

DSPs

(Digital Signal

Processors)

Communication

with Data

Processor.

Voice PCM and

FAX coding.

Frame

assembly/

disassembly.

Scrambling/

descrambling.

FEC coding.

TX IF

2.5 MHz

ASIC

(Application

Specific

Integrated

Circuit)

Generates
modulated

TXIF

signal.

Demodulates

RXIF signal.

FEC decoding.

RX IF
12 MHz

RF Sub-system

Up-

converter

&

Transmitter

Upconverts

TXIF signal to

L-band TX

signal.

Amplifies TX

signal.

Local

Oscillator

1455–1489 MHz

Down-

converter

&

Receiver

Downconverts

L-band RX

signal.

Amplifies RX

signal.

Combiner/

splitter

TX

1626.5–

1646.5 MHz

RX
1530–
1559 MHz

RF Units

Receiver

Transmitter

HPA

High Power

Amplifier

Serial
Data
Interface

Duplexer

Separates RX and TX bands

LNA

Low Noise

Amplifier

Combiner/splitter

Combines/separates RF

signals and control signals

Control &
Monitoring Data

Voltage
Regulator

+28
VDC

RF Sub-

system

Power

Data
5/10 MHz

ADE supply
+28 VDC

+ 5 VDC
+15 VDC

PC

Buffers

&

UARTS

Access & Control.

Traffic handling.
User equipment

handling.

Alarm & Supervision.

T est & Diagnosis.

22

AC Mains

DC
Supply

90-276 VAC

47-400 Hz

11-34 VDC

Printer

Tx off

Data

DC/DC Power Board

Outputs:

Transmitter/receiver

&

Filters

Antenna Control Modem

+72 V
+38 V
+28 V

±

12V
+7 V
+5 V
GND

Data

Processor

HPA output

control.

Power monitor

supervision.

Burst duration

supervision.

Antenna Control Board – ACB

Saturn Bp Portable – Technical Manual

DiagramsDiagrams Antenna Unit Interconnection Diagram

Diagrams

Antenna Unit

RF Transmitter RF Receiver

Case w/
Main Control Unit

TRX

Combiner/

Splitter

TX

RX

+28V

DATA

Level

Regulator

(ALC)

+12 V

POWMON
POWREF

Tx Supply

Driver HPA

Power

Detector

+28 V

TXOUT

RXIN

TXIN

RXOUT

Amplifiers

&

Filters

+28V / +12V

Converter

Duplexer

1625.5 -

1660.5 MHz

+12 VDC

ANT

LNA

1525 -

1559 MHz

+15 V

+5 V

Voltage

Regulator

Data

Modulator

Data

Demodulator

+28 V

(*STATUS
function
message)

TXD

CPU

RXD

Antenna Control Board – ACB

*TXENABLE

*TXINP
*TXOUT

DACs

Comparator

QUART

Saturn Bp Portable – Technical Manual

23

Telephone 1 (or Telefax)

Telephone 2 (or Telefax)

Telephone 3 (or Telefax)

Telephone 4 (or Telefax)

TEL

C

D

E

F

G

H

J

External

Connectors

TEL-2A

TEL-2B

TEL-3A

TEL-3B

TEL-4A

TEL-4B

TEL-5A

TEL

J1

2
3
4

Internal

Connectors

TEL-1A

TEL-1B

J10

11

23

10

22

9

21

8

J15/P2

A33

A32

A31

A30

A29

A28

A27

A26

A25

MAIN CONTROL UNIT – INTERCONNECTION DIAGRAM PAGE 1

Main Control Unit Board

Telephony Interface

T elephone Interface

& Relay Circuits

IL (0:5)

TXS

RXS

Codec

Selection

Circuits

VFRO

VFRI

PCM

Codec

DRI

DTI

SCLK_OUT
F_SYNCI

-CDC_SEL
CDC_CLK
RESET

Digital Signal Processing Sub-system

TX-SAMBA

&

D/A

~ 2.5 MHz

Converter

DiagramsDiagramsMCU Interconnection Diagram

Diagrams

TXMUTE

TXIF

Telephone 5 (or Telefax)

HANDSET

DIAL 00+INTL
TEL . NO . + f

1

2

3

4

5

6

7

8

9

0

*

#

DEL

FUNC

ALPHA

ENTER

MORE/
HELP

SHIFT

LES

ON/OFF

Display Handset

PC

(Data)

K

E
G
F

B
C
D
A

DTE

N

F

B

J

K

C

L

A

H

E

M

D

P

R

TEL-5B

SCREEN (101)
TXD (103)
RXD (104)
RTS (105)
CTS (106)
DSR (107)
GND (102)
DTR (108)
DCD (109)
RI (125)
TXCLK (DCE)
RXCLK (DCE)
TXCLK (DTE)
DRS (111)
DRS (112)

Not
used

AUX

J6

3
6
5
4
1
2
7
8

DTE
J7

1
2
3
4
5
6
7

20

8
22
15
17
24
23
25

20

J13

6
8
7

3
4
5
1

J10

19

7

3
15
16

4
17

2
14

6
18

5
24
12

EXOA
EXOB
EXIA
EXIB
EWA
EWB
MWA
MWB

HSA-RX
HSA-TX
HS-GNDA

TXD (103)
RXD (104)
12V
DIG GND

A24

A22
A21
A20
A19
A18
A17
A16
A15

A12
A10
A11

A06
A07

A05

J14/P1

B27
B26
B25
A20
B24
A27
A24
B23
A23
A26

A21
A19
B19

RS-232

Serial

Interface

RS-232

SWITCH (1:7)

RXE TXE

Access & Control Sub-system

(see also diagram page 2)

Telephony

Control

Latch

UART

CH. A

CPU

SCC1

CDC_TXCDC_RX

-RES_DSP
R-W

-HIP_2111

-TX_REQ

-RX_RDY

Data (0:15)

Address (1:2)

Master

Digital
Signal

Processor

RX-SAMBA

&

A/D

Converter

Digital
Signal

Processor

RXIF

~ 12 MHz

24

2/96

To/from RF Sub-system (see diagram page 2)

Saturn Bp Portable – Technical Manual

DiagramsDiagrams MCU Interconnection Diagram Cont’d

Diagrams

PC

Printer

PC

PRINTER

Internal

Connectors Cont’d

J8

RXD (104)

2

TXD (103)

3

GND (102)

5

RTS (105)

7

CTS (106)

8

P9

RXD (104)

2

TXD (103)

3

DTR (108)

4

GND (102)

5

DSR (107)

6

RTS (105)

7

CTS (106)

8

MAIN CONTROL UNIT – INTERCONNECTION DIAGRAM PAGE 2

Access & Control Sub-system (see also diagram page 1)

J14/P1

B21
B22
A22
B20
A25

B17
B18
A15
A18
B15
B16
A16

RS-232

Serial

Interface

RS-232

Serial

Interface

SCC2

UART
CH. D

CPU

Main Control Unit Board Cont’d

Latch

&

Buffer

* TX1 LOCK

BWCTRL1
BWCTRL2
BWCTRL3

SYNTDAT
SYNTCLK

TXSLCT

* TX2 LOCK

* LO LOCK

LOSLCT

Clock

Data

* OSC_LOCK

(* STATUS

function

message)

RXIF

~12 MHz

To/from DSP (see diagram page 1)

TXIF

15.84 MHz

X-tal

osc.

~2.5 MHz

~18.3

Tracking filter

MHz

x1
x4

BW=3 MHz

(PLL)

15.84 MHz

63.36 MHz

~12 MHz

RF Sub-system

~18.3
MHz

System
clock

LOREF

Up-converter

(PLL)

Local

oscillator

(PLL)

AGC
Amp.

~75 MHz

TXMUTE

1450 ­1484 MHz

1626.5 -

1660.5 MHz

Combiner/

splitter

1525 ­1559 MHz

A04
A03
A01
A02

A30
B30
A29
B29
A28
B28

+12V

Optocoupler

Optocoupler

UART
CH. C

UART
CH. B

SCC3

J17

A12 B12 A13 B13 A14 B13

-POWER-OFF

* RX SIGNAL

-TXOFF

Memory

ANT_TX

ANT_RX

KEY-ON

DC-LEVEL

Power detector

5 MHz

10 MHz

+72 V RET

+72V

-38V RET

Tx supply

Antenna Control Modem

Transmitter

Receiver

A39 A38 A11 A12 A09 A08 A07 A06 B05 A05 A03-04 A01-02

-38V

TEMP_RET

TEMP

-12V

Lowpass

Filter

Highpass

Filter

B09 B08 B07 B06 B03-04 B01-02

-12V RET

+5V

+5V RET

+12V

+12V RET

+7V

+7V RET

+28V

DATA

+28V

+28V RET

+28V RET

90 – 276 VAC
47 – 400 Hz

11 – 34 VDC

GND
–

+

A
B
C

A
B

ON

OFF

6.3 A slow

2/96

Saturn Bp Portable – Technical Manual

P1

15-16 13-14 11-12 1 2 3 4 5 6 19-20 21-22 23-24 25-26 27-28 29-30 31 32 33-36 37-40

AC & DC/DC Power Board

25

Exploded view – Saturn Bp Trunk

Cover

Airduct

MCU Main Parts

ServiceService

Service

Gasket

MCU

Box

RF Unit Cover
Main Control Board

Connector
Panel

Mounting plate

Frame

Power Board

26

Trunk

Pull handle

MCU Heatsink

Fan

Grid

Saturn Bp Portable – Technical Manual

ServiceService Exploded view – Saturn Bp Transceiver

RX Unit

TX Unit

Antenna Control Board

Antenna Base Plate

Antenna Housing

Antenna Supporting Leg

Antenna Supporting Leg

Antenna Lock

Service

Saturn Bp Portable – Technical Manual

27

Replacing Trunk Parts

Red

Blue

Red

Blue

ServiceService

Service

1

• Open trunk and remove the contents. (Antenna sections,
MCU, cables etc.)

• Remove screws fastening the cover.

Note! 5 screws - M4x20 / 2.5 mm Unbraco. See figure!

• Lift off cover.

Note! May be a little tight because of edge sealing.

• Remove screws around Connector Panel. Remove frame.

Note! 4 screws - M3x6 pozidriv

2

• Loosen the first 4 nuts

Note! 8 mm socket

• Remove tie mount

• Loosen another 4 nuts

Note! 8 mm socket

• Remove washers

• Pull off rubber absorbers

Note! Replace bushings if they are pulled off along with absorbers

3

• (A) Move cables and wires carefully aside.

• (B) Squeeze hose clamp as illustrated and slide it towards
the trunk wall to disengage the MCU/fan channel from bel­low.

• (C) Disconnect the fan by pushing a small screwdriver into
the terminal block as shown.

• (D) Lift out the MCU and place it alongside the trunk.

Start lifting the side edge as illustrated.

Note! Wires are still connected, be careful!

DISMOUNTING DISMOUNTING DISMOUNTING

2.5 mm

2.5 mm

2.5 mm

2.5 mm

2.5 mm

6 mm

6 mm

frame

MOUNTING MOUNTING MOUNTING

1414

14

• Replace the cover

Note! May be a little tight because of edge sealing.

• Mount the cover

Note! 5 screws – M3x6 pozidrive

• Mount the frame surrounding the Connector Panel

6 mm

6 mm

8 mm nut

tie mount

8 mm nut

washer

rubber absorber

"ear" on MCU

bushing

threaded bolt

1313

13

• Check that bushings slide down onto the bolts as illus­trated.

• Mount the unit.

Note! Make sure that the “mounting ears” on the MCU are

mounted with rubber absorber, washer, nut, tie mount
and nut as shown on the drawing.

1212

12

At this point the MCU is to be placed in the trunk as follows:

• Place/push wires and cables against the trunk wall.

• Before lowering the unit fully down, slide the bellow (A)
onto the fan channel.

• Insert the locking ring (B)

• Connect the fan by pushing a small screwdriver into the
terminal block (C) andinsert wires as shown.

28

Saturn Bp Portable – Technical Manual

ServiceService Replacing Trunk PartsReplacing Trunk Parts

M3x6M3x6M3x8

M3x8

M3x6 M3x6 M3x6

M3x6 M3x6

M4x6

M4x6

M4x6 M4x6

M4x6

M4x6

M4x6

locking spring

Service

4

• (A) Release coax cable

• (B) Disconnect multiplug.

Remove locking spring and disengage locking plate as illus­trated.

• (C) Disconnect remaining three plugs

Push up locking spring as indicated.

• (D) Unscrew 8 nuts an remove washers.

Note! 7 mm socket

5

• Lift off airduct

• Remove packing carefully.

6

• Turn the MCU upside down.

• Remove the large screws fastening the enclosing box

Note! 7 screws – M4x6

• Remove the screws fastening the locking spring

Note! 2 screws – M3x8 with large washers

• Remove remaining bottom plate fastening screws

Note! 7 screws – M3x6 with small washers

• Lift off the box

Note! Be aware of the Connector plate packings

DISMOUNTING DISMOUNTING DISMOUNTING

Release

Press
to lock

locking spring

Press to
release

MOUNTING MOUNTING MOUNTING

1111

11

• (D) Place the washers in the recesses and mount the nuts

Note! 7 mm socket

• (C) Interconnect the three plugs

• (B) Mount multiplug and lock with locking plate and spring

• (A) Mount coax cable

Note! Make sure locking hooks catch.

airduct

gasket

1010

10

• Turn the unit around

• Place the packing in correct position

• Place the airduct in correct position

99

9

• Replace the enclosing box

Note! Make sure all packings and bushings are correctly

positioned. See previous step.

• Mount the large screws fastening the box

Note! 7 screws – M4x6

• Mount the locking spring

Note! 2 screws – M3x8 with large washers

Saturn Bp Portable – Technical Manual

• Mount the remaining box fastening screws

Note! 7 screws – M3x6, with small washers

29

Replacing Trunk Parts

Sil pad

MCU heatsink

ServiceService

Service

7

• Unscrew 6 standoffs (spacers)

Note! 3 sizes – 12 mm/16 mm/22 mm

7 mm spanner. See figure!

8

• Turn around the MCU

• Remove 4 unbraco screws

Note! M4x12 – 3 mm unbraco key

9

• Holding the unit together, turn it upside once more

• Lift up/out electronic unit including main circuit board (top
side) and power supply (bottom side)

Note! Save the small SIL pad protecting the spool on the

power supply from being damaged by the fastening
screw.

DISMOUNTING DISMOUNTING DISMOUNTING

16 mm

16 mm

22 mm

16 mm

M4x12 M4x12 M4x12 M4x12

16 mm

12 mm

gasketsbushing insulator

MOUNTING MOUNTING MOUNTING

88

8

• Turn the unit again

• Mount 6 standoffs (spacers)

Note! 3 sizes – 12 mm/16 mm/22 mm

7 mm spanner! See figure!

30

77

7

• Holding the unit together, turn it carefully around

• Mount 4 unbraco screws

Note! M4x12 – 3 mm unbraco key

66

6

• Place MCU heatsink with cooling fins down as shown

• With the Main Control Board up, lower the electronic unit
carefully down onto the bolts.

Note! Make sure that the bolts do not damage the electronics.
Note! Make sure that the Sil pad is positioned between the

bolt and the spool on the Power Board.

Saturn Bp Portable – Technical Manual

ServiceService Replacing Trunk PartsReplacing Trunk Parts

Service

10 Power Board

• Turn the unit upside down.

• Cut wire ties

Note! Observe their positions

• Unscrew the board

Note! 4 screws – 2 sizes (M4x6 / M4x25 unbraco, 3 mm key).

See figure!

11

• Pull out the Power board

12 Main Control Board

• Turn the unit upside down.

• Cut or loosen wire ties

(If Power board has not already been dismounted)

• Unscrew the coax receptacle

Note! Nut and lock washer

• Slide the Connector Panel carefully off the Main Control
Board.

Replacing the DSP PROM, refer to step 14.

DISMOUNTING DISMOUNTING DISMOUNTING

Connector Panel

M4x25 M4x25

M4x6

Nut

Washer

fan plug

55

5

• Mount the Power board

Note! 4 screws - 2 sizes (M4x6 / M4x25 unbraco, 3 mm
nøkkel) See figure!

• Connect the fan plug

M4x6

Power Board

Main Control Board

MOUNTING MOUNTING MOUNTING

44

4

• Turn the unit upside down.

• Push the Power Board into position.

Note! Mind the edge connector.

33

3

• Push the Connector Panel carefully into position.

Note! Mind the edge connector.

• Mount the coaxial receptacle.

Note! Nut and lock washer

• Fasten wires with ties as prior to dismounting

Saturn Bp Portable – Technical Manual

31

Replacing Trunk Parts

ServiceService

Service

13

• Remove the clamps pressing the IC against the cooling plate

(Note! Save the Sil pads

• Remove the screws fastening the RF Unit cover.

Note! 3 screws - 2 sizes (M3x16 / M4x10). See figure!

• Remove the screws fastening the Main Control Board.

Note! 2 screws – M4x6. See figure!

The Main Control Board may now be replaced.

14 Replacing the DSP PROM

Tools required:

• PLCC extractor

• Wrist strap

• Follow the instructions in steps 1 – 8 of the dismounting
procedure.

• Locate the DSP PROM

• Place the PLCC extractor diagonally over the PROM as
shown in the figure.

• Carefully pull up the PROM from the socket.

DISMOUNTING DISMOUNTING DISMOUNTING

M3x16 M3x16

M4x6

M4x10

22

2

• Fasten the Main Control Board.

Note! 2 screws – M4x6. See figure!

clamps

PROM

Extraction of DSP PROM

M4x6

PLCC Extractor

DSP PROM

MOUNTING MOUNTING MOUNTING

11

1

IMPORTANT!

Use wrist strap when handling the new PROM!

• Mount the RF Unit cover.
Carefully tighten the screws evenly.

Note! 3 screws - 2 sizes (M3x16 / M4x10). See figure!

• Replace the clamps

Note! Insert a sufficient amount of Sil pads so as to
avoid tension on the IC.

32

• Align the PROM correctly and push it carefully down into
the socket.

Saturn Bp Portable – Technical Manual

ServiceService List of Spare Parts

Service

Spare Parts – Saturn Bp

Description Nera Part Number

Basic parts:

AC cable 10 m QRPM911035
Antenna cable QRPM911030-1100
Antenna elements QSXK911910
Compass R906631
DC cable, 3m QRPM911036-3000
Fuses T6.3A Slow R906640/6.3S
Handset QDGS911901-2

Case:

Bellows QSCR101001
Bolt for wheel QSXA911135
Cable to MCU w/AC connector QRPM911040-0300
Cable to MCU w/connector and switch QRPM911042-0350
Cable to MCU w/DC connector QRPM911041-0450
Cable to MCU w/multiconnector QRPM911043-0500
Cable, MCU - handset QRPM911044
Coax cable QRPM911039
Fan for case QBKV101004-24
Fuse for MCU NGH24104/63
Fuse holder QNFN911001
Hinge for case QSXK911914
Lock w/key QSKY101001-2
Lock wo/key QSKY101001-1
Wheel QSLJ101001

Main Control Unit – MCU:

Fan for MCU QBKV101005-24
Printed board assembly, ICB QROF2199105
Printed board assembly, MCB QROF2199001-2
Printed board assembly, power QROF2199022-2

RF Transceiver:

ACB QROF2199023-2
Antenna, base plate QSXK911911
Antenna, stand, pole QSXA911126-2
Antenna, stand, pole QSXA911126-3
Cable, RX - base plate QRPM911049-0230
Cable, RX out - RX in QRPM911015-0090
Cable, TX - ACB QRPM911046-0160
Cable, TX out - TX in QRPM911015-0140
Rotation lock for antenna QSXK911920
RX QUFC911905
TX QUFC911904

Saturn Bp Portable – Technical Manual

33

Number lists
and user lev.

1–

Region and
antenna ctrl

2–

Alarms and
messages

3–

System
information

4– ★

Terminal
config

5– ★

Bulletin
board data

6– ★

Installation
commands

7– ★

Enhanced
functions

8– ★

User level

Operator level ★

BB Status

(6)1 ★★

Randomize
advice

(6)2 ★★

Fwd channel
advice

(6)5 ★★

Return chnl
advice

(6)6 ★★

Sat.param.
advice

(6)7 ★★

Registration
status

(6)8 ★★

Active NCS
and spot id

(6)9 ★★

MES Id

(4)0 ★

MCU program
version

(4)1 ★

ACU type
ACU/PCU ver

(4)2 ★

DSP PROM
version

(4)3 ★

Boot PROM /
handset ver.

(4)4 ★

Enhanced
setup

(8)9 ★

Active
alarms

(3)0

Info
log

(3)1

Clear
cause log

(3)2 ★

Terminal
status

(3)3 ★

Menus:

Explanation of keys:

Reverts to
previous
position

Deletes
entry

Scrolls
down/
up
through
choices

Displays
additional
information

Arrow in the display
indicates that more
information is available:

Moves to the next
choice, or enters
the selected one

Selects FUNCTIONs,
and displays HELP
page if any

Current
ocean region

(2)0

Geographic
position

(2)1 ★

Nav area

(2)2 ★

IMO SAR
area

(2)3 ★

WMO area

(2)4 ★

ICAO SAR
area

(2)5 ★

Default LES

(5)0 ★

Contrast
adjust

(5)1 ★

Ring volume
adjust

(5)2 ★

Date and
time

(5)3 ★

Stand-alone
LES

(5)4 ★

LES
capabilities

(6)0 ★

Configure
ports

(7)0 ★

Incoming
call route

(7)1 ★

Commission
status

(7)2 ★

Various
config

(7)7 ★

Short number
list

(1)0

Last number
list

(1)1

Set user
level

(1)2

Set
password

(1)3 ★

Group id
numbers

(1)4 ★

☞

☞

ENTER

ENTER

☞

LIST

☞

☞

LIST

LIST

MORE/
HELP

☞

DEL

☞

☞

ESC

FUNC

☞

FUNC

☞

ESC

☞

Functions no.80 – 88 depend

on Saturn Mp configuration

Erase all
NV data

(7)9 ★★

SCAR
list

(1)9 ★★

Statistic
info
(3)4 ★★

Error
(3)5 ★★
Restart

cause

(3)6 ★★

Service level ★★

ServiceServiceService Level Functions

Service

General

The diagram provides an overview of all Saturn
Bp functions, including five special "Service
Level" functions:

• Terminal Status, function no. 33 *

• Statistic info, function no. 34 *

• Error, function no. 35

• Restart cause, function no. 36

• Erase all NV data, function no. 79
The "Service Level" is selected with the "SET

(See "Setting User Level" in the Operator’s

USER LEVEL" function no. 12.

Manual)

The service level is set by keying 5 when select­ing level, and entering the password 753951
when prompted.

(1=user level, 2=operator level, 5=service level).

Terminal Status (3)3 *

The Terminal Status function shows the status
of several test points monitored in the MCU.
The signals are marked with an asterisk (*) on
the MCU and Antenna Unit block diagrams.
They are also listed in the Terminal Status
Table.

Statistic Info (3)4 *

The Statistic Info function has no relevance for
service. It should only be used on request from
NERA.

configuration mistakes are made and the user
has difficulties in recovering the system. It
resets all configuration values to default.

Service printouts on PC

Information from the following functions can be
routed to a PC:

• Active alarms, function no. 30

• Info log, function no. 31

• Clear cause log, function no. 32

• Terminal Status, function no. 33 *

• Statistic info, function no. 34 *

Connection

A modem cable is connected between the DTE
port on the MCU and the Serial port of the PC.
A terminal emulator program, e.g. Procomm,
must be set up with the following port configura­tion:

Default 19.2 Kbps, 8-bit, no parity, 1 stopbit,
or as set with function no.86, see Saturn B Data
Service Operator’s Manual.

Error (3)5

The (SW) error function has no relevance for
service. It should only be used on request from
NERA.

Restart Cause (3)6

The Restart Cause function displays the reason
for the latest restart causes. It always contains
at least the Power up restart cause.
The function is a development tool, and has no
relevance for service. It should only be used on
request from NERA.

Erase all NV data (7)9

The Erase all NV data function can be used if

34

Saturn Bp Portable – Technical Manual

Ref Display

Comments

No. Message

19 CALIBRATING Fluxgate compass failure

FAILURE

20 TX POWER OFF Main Control Unit failed to turn off transmitter in antenna.

FAILURE

21 MCU CARRIER Main Control Unit carrier not received by transmitter

MISSING in antenna.

22 HPA CARRIER Carrier not sent by antenna transmitter.

NOT SENT

23 MCU BURST Main Control Unit carrier not received by transmitter

MISSING in antenna.

24 HPA BURST Carrier not sent by antenna transmitter.

NOT SENT

25 PRINTER Printer programmed in Main Control Unit (MCU), but fails

NO RESPONSE to respond.

27 PC TELEX PC output programmed in Main Control Unit (MCU), but telex

NOT READY fails to respond.

28 GEO POSITION Geographic Position is not entered in due time.

NOT SET

29 NEED VERSION Wrong software version loaded in Main Control Unit (MCU), or

XX.XX wrong BOOT PROM version.

30 FUNCTIONALTY Enhanced function inconsistency

IS LOST

31 TRAFFIC LOG Traffic log erased.

DATA LOST

32 ANTENNA INIT No communication with antenna.

FAILURE

ServiceService

Service

List of Alarm Messages

Ref Display

Comments

No. Message

0 RX LOCK Receiver synthesizer out of lock

FAILURE

1 ANTENNA LINK No communication with antenna.

2 TERMINAL ID ID PROM in Main Control Unit (MCU) defective.

3 TX DETECTOR Illegal initial transmitter output level detected in Antenna

4 TX MONITOR Illegal initial transmitter input level detected in Antenna

5 ACU 28 VOLT Antenna Control Unit (ACU) input power too low.

6 ACU EPROM Antenna Control Unit (ACU) EPROM defective.

FAILURE

CRC FAILURE

FAILURE Control Unit (ACU).

FAILURE Control Unit (ACU).

FAILURE

FAILURE

7 ACU RAM Antenna Control Unit (ACU) RAM defective.

8 DSP COMM. Digital Signal Processor - CPU communication failure.

9 ALONE LES Default Standalone LES preselected.

10 DISTRESS LES Default Distress LES preselected.

11 STAND ALONE Standalone LES operative.

12 CALL REPEAT Due to heavy traffic. Minimum time between call requests

13 EEPROM CRC EEPROM in Main Control Unit (MCU) erased or defective,

14 NVRAM CRC NVRAM in Main Control Unit (MCU) erased or defective.

15 GROUP ID Error occurred when trying to register new group id.

FAILURE

FAILURE

PRESELECTED

PRESELECTED

LES USED

TIME LONG can be up to 17 minutes.

FAILURE or new software loaded.

FAILURE

FAILURE

16 DISTRESS UNIT Distress Alarm defective or not connected, or wrong

FAILURE address programming.

17 ANT.RESET No response to antenna reset.

FAILURE

18 ACU/MCU TYPE

MISMATCH

Saturn Bp Portable – Technical Manual

Wrong antenna type connected to Main Control Unit (MCU).

35

List of Start-up Messages

List of Terminal Status Messages

ServiceService

Service

Ref Display

Comments

No. Message

0 PLEASE WAIT

1 CPU FLASH ID

2 CPU BURN ERR

3 CPU RAM ERR Cannot start system: hardware error.

4 DSP FLASH ID

5 DSP BURN ERR

6 VERSION ERR Illegal version of system program loaded, cannot start.

7 FLASH ERROR Incomplete system program, cannot start.

*

*

*

*

Only occurs at power up or when trying to load new software.

Cannot load new system program: problem with hardware.

Failure when loading new system program: hardware error.

Cannot load new DSP program: problem with hardware.

Failure when loading new DSP program: hardware error.

Ref No.

0 RX SIGNAL

1 TX1 LOCK

2 TX2 LOCK

3 LO LOCK

4 OSC LOCK

5 TX ENABLE

6 TX INPUT

7 TX OUTPUT

Display
Message

Comments

AGC active

TX1 synchronized

TX2 synchronized

Local oscillator locked

Oscillator locked

Transmitter on

Transmitter output low

Transmitter output high

8 BOOT PROM Illegal version of system program loaded, cannot start.

TOO OLD

*

Only occurs when trying to load new software.

8 NOT INUSE

36

Saturn Bp Portable – Technical Manual

ServiceService List of Clear Causes

Ref No.

Display

Action Comments

Message

Service

Ref No.

Display

Action Comments

Message

0000/000 UNSPECIFlED

1021/000 OFF_HOOK TRY AGAIN Off Hook was not received from addressed MES

1081/000 TERMINAL ID The specified MES terminal number has not been

1141/000 PRIORITY PREEMPTION Pre-emption by MES user instruction to establish a

1142/000 DISTRESS PREEMPTION Offered shore-call cleared, pre-empted at MES by

1144/000 DISTRESS Attempted ship-call cleared, pre-empted at MES by

1145/000 PRIORITY Attempted ship-call cleared, pre-empted at MES.

REASON

TIMEOUT terminal within time limit.

MISMATCH installed

PREEMPTION Distress.

PREEMPTION

higher priority call

Distress.

12B1/005 UNSUCCESSFUL TRY AGAIN MES is clearing due to timeout. Waiting for assignment

CALL ATTEMPT from NCS during distress call.

12B1/008 LES TRY NEW LES Signal NUMBER from user carries an illegal CES ac-

UNDEFINED cess code parameter.

12B1/009 UNSPECIFIED TRY AGAIN Call rejected because a call set-up is already in

REASON progress.

12B1/010 UNSUCCESSFUL TRY AGAIN MES is clearing due to timeout. Waiting for assignment

CALL ATTEMPT from NCS during ship call.

12B1/011 UNSUCCESSFUL TRY AGAIN Respond-channel is not tuned in time.

CALL ATTEMPT

12B1/012 BUSY WITH TRY LATER Control did not grant access to terminal due to

CALL conflicting ship call.

12B1/013 BUSY WITH TRY LATER Control did not grant access to terminal due to

CALL conflicting shore call.

11D1/000 UNDEFINED TRY AGAIN Invalid information from MES; Service-Nature,

REASON -Type or Channel Param.

11D2/000 INCORRECT TRY AGAIN The “service address” information received from

NUMBER MES is invalid

11D3/000 INCORRECT TRY AGAIN The “service address” received from MES is currently

NUMBER undefined

11D4/000 CREDIT CARD TRY AGAIN Credit card information received from the MES is

DATA INVALID invalid

1201/000 SIMPLEX CALL MES is acknowledging the receipt of a simplex call

SUCCESSFUL

1261/000 SIMPLEX CALL Acknowledge of a simplex call which is possibly

UNSUCCESSFUL unsuccessfully received.

1262/000 DISTRESS Telephony ‘Distress Test’ call cleared after 120s

TEST TIMEOUT

12B1/001 DIAL TIMEOUT TRY AGAIN MES is clearing due to timeout of timer TS011

12B1/014 TOO FREQUENT TRY LATER Control did not grant access to terminal due to too

CALL ATTEMPT frequents request.
12B1/015 MES BUSY TRY LATER Control did not grant access to terminal.
12B1/020 TEMPERATURE System has failed. Ex. temperature alarm.

TOO HIGH
12B1/021 ANTENNA LINK The communication link to ACU has failed.

FAILURE
12B1/022 TX BURST TIME The tx burst duration has exceeded the maximum limit.

WAS TOO LONG
12B1/023 TX POWER OUT The tx power output level has exceeded the maximum

WAS TOO HIGH limit.
12B1/024 TX SYNTH. TX synth out of lock, call cleared or abandoned.

FAILURE
12B1/025 INITIALIZING System is not ready yet after start-up

TRY LATER

12B1/002 UNSUCCESSFUL TRY AGAIN MES is clearing (no SCPC signal received)

CALL ATTEMPT

12B1/003 UNSUCCESSFUL TRY AGAIN Channel is not tuned within allowed time limit.

CALL ATTEMPT

12B1/004 UNSUCCESSFUL TRY AGAIN MES is clearing due to timeout. Waiting for assign-

CALL ATTEMPT ment from NCS during shore call.

Saturn Bp Portable – Technical Manual

12B1/026 SPOT BEAM Spot beam selection is being performed

SELECTION
12B1/027 NETWORK DATA TRY LATER Bulletin board data (satellite channel information etc.)

VALIDATION is not yet verified
12B1/028 GROUP ID Group IDs are being updated

DOWNLOAD

37

Ref No.

Display

Action Comments

Message

List of Clear Causes Cont’d

ServiceService

Service

Ref No.

Display

Action Comments

Message

12B1/029 ELEVATION Calculation of elevation zone is in progress

ESTIMATION

12B1/030 OCEAN REGION Ocean region registration is in progress

REGISTRATION

12B1/031 ANTENNA TRY LATER Antenna is not yet ready for use

INITIALIZING

12B1/033 NO SATELLITE REPOINT ANT. No satellite sync can be achieved

IS FOUND

12B1/034 CONFIGURING TRY LATER Antenna configuration is taking place

ANTENNA

12B1/035 FAST TRACK TRY LATER Antenna is tracking satellite

SATELLITE

12B1/036 SEARCHING TRY LATER Antenna is searching for satellite(s)

SATELLITE(S)

12B1/054 RESTRICTION CALL AGENT Access restricted due to Enhanced Function

DIAL 33# inconsistency.

12B1/055 ANTENNA CMD A command to the ACU was not accepted (4 times),

NOT ACCEPTED link restarted.

12B1/56 PEDESTAL CMD A command to the PCU was not accepted (4 times),

link restarted.

12B1/57 ANTENNA INIT Antenna initializing failed.

FAILED

12C1/000 UNSUCCESSFUL TRY AGAIN Scrambling Vector Ack was not received within allowed

CALL ATTEMPT time limit.

12C2/000 UNSUCCESSFUL TRY AGAIN Credit Card Accepted was not received within allowed

CALL ATTEMPT time limit.

12C3/000 UNSUCCESSFUL TRY AGAIN LES Connect message is not received by the MES

CALL ATTEMPT terminal within allowed time limit.

12B1/041 PRINTER NOT Power may be turned off, cable not connected, paper

RESPONDING empty or printer not selected/on-line.

12B1/043 UNSUCCESSFUL TRY AGAIN No acknowledge

CALL ATTEMPT

12B1/044 UNSUCCESSFUL TRY AGAIN No sync

CALL ATTEMPT

12B1/045 UNSUCCESSFUL TRY AGAIN No rx lock

CALL ATTEMPT

12B1/046 UNSUCCESSFUL TRY AGAIN No tx1 lock

CALL ATTEMPT
12B1/047 UNSUCCESSFUL TRY AGAIN No tx2 lock
12B1/048 UNSUCCESSFUL TRY AGAIN Missing or illegal channel

CALL ATTEMPT
12B1/049 UNSUCCESSFUL TRY AGAIN No authorization

CALL ATTEMPT
12B1/050 UNSUCCESSFUL TRY AGAIN Burst not sent

CALL ATTEMPT
12B1/051 NO TIME LEFT CALL AGENT Precharge terminal has run out of time. Must refill before

DIAL 230# call is possible.
12B1/052 UNACCEPTABLE Wrong PIN code entered.

PIN CODE

12D1/000 UNSUCCESSFUL TRY AGAIN Invalid “spot-beam ID” information from MES

CALL ATTEMPT

12D2/000 UNSUCCESSFUL TRY AGAIN The Scrambling Vector information received from MES

CALL ATTEMPT is invalid

1361/000 REWIND TRY AGAIN Above-decks equipment is about to “cable unwrap”

INTERRUPTION

1362/000 SIGNAL TRY AGAIN Long term interruption in reception.

INTERRUPTION

1363/000 REPOINTING TRY LATER PFC has commanded the Above-decks equipment to

ANTENNA repoint to a different Ocean Region.

1451 /000 TERRESTRIAL TRY AGAIN An appropriate terrestrial circuit is not currently

CONGESTION available at this LES.

1452/000 LES TRY AGAIN An appropriate channel unit and associated terrestrial

CONGESTION circuit, with ‘one-to-one’ connection, are not currently

available at this LES.

1541/000 PRIORITY Pre-emption of LES by a higher priority call.

PREEMPTION

1551 /000 LES TRY AGAIN An appropriate satellite channel is not currently

CONGESTION available at this LES.

1552/000 LES TRY AGAIN An appropriate tdm and/or tdma time-slot is not cur-

CONGESTION rently available.

38

Saturn Bp Portable – Technical Manual

ServiceService List of Clear Causes Cont’d

Ref No.

Display

Action Comments

Message

Service

Ref No.

Display

Action Comments

Message

1581/000 SERVICE NOT TRY NEW LES LES is not equipped to provide the specified service.

PROVIDED

1591/1000 SERVICE NOT TRY AGAIN LES is equipped to, but not currently able to provide

AVAILABLE the service.

1592/000 CREDIT CARD TRY NEW LES Specified credit card type is not currently supported by

TYPE INVALID this LES.

15A1/000 MES NOT TRY NEW LES MES is not authorized for any service, except Distress,

AUTHORIZED via this LES.

15A2/000 SERVICE NOT TRY NEW LES MES is not authorized for specific requested service via

AUTHORIZED this LES.

15A3/000 CREDIT CARD Credit card data from MES rejected by the authorization

NOT ACCEPTED checking process.

15B1/000 UNDEFINED The call is cleared or rejected for a reason not currently

CAUSE defined.

15C1/000 UNSUCCESSFUL TRY AGAIN Channel Assignment message is not received within

CALL ATTEMPT allowed time limit.

15C2/000 UNSUCCESSFUL TRY AGAIN The service-address information is not received within

CALL ATTEMPT allowed time limit.

15C3/000 UNSUCCESSFUL TRY AGAIN Scrambling Vector message is not received within

CALL ATTEMPT allowed time limit.

15E1/000 FORCED LES is attempting to clear an MES which has sent an

RELEASE SCPC channel release message, but is found still to be

transmitting 5.12 s later.

1651/000 LES TRY AGAIN LES is rejecting the call because an appropriate channel

CONGESTION unit is not currently available.

1661/000 SIGNAL TRY AGAIN Interruption in reception of the MES carrier exceeding

INTERRUPTION allowed time limit.

16C1/000 UNSUCCESSFUL TRY AGAIN Telegraphy call cleared; MES carrier is not received

CALL ATTEMPT within time limit.

16C2/000 UNSUCCESSFUL TRY AGAIN An appropriate SCPC MES carrier is not received by LES

CALL ATTEMPT (at the commencement of the call) within the time limit.

1851/000 SATELLITE TRY AGAIN Appropriate SCPC channel is not currently available.

CONGESTION

18A1/000 MES-ID TRY NEW LES MES ID is not in the ‘Forward and Return MES ID’ cross

UNKNOWN reference table.

18B1/000 CALL The call is cleared or rejected for a reason not currently

REJECTED defined.

18E1/000 MES-ID USED The specified MES ID is in the “MES busy list” at the

BY OTHER MES NCS, listed as being busy with a call through the same

LES as that now requesting a “call announcement”
addressed to that MES.

15C4/000 UNSUCCESSFUL TRY AGAIN Neither Scrambling Vect. nor Serv. Address is received

CALL ATTEMPT within time limit.

15C5/000 UNSUCCESSFUL TRY AGAIN LES is clearing the call because the complete “credit

CALL ATTEMPT card data” info has not been received.

15C6/000 UNSUCCESSFUL TRY AGAIN Return Carrier Identifier message not received within

CALL ATTEMPT allowed time limit.

15C7/000 UNSUCCESSFUL TRY AGAIN MES Connect message is not received within the

CALL ATTEMPT allowed time limit.

15C8/000 UNSUCCESSFUL TRY AGAIN Telegraphy call cleared; MES Answerback is not

CALL ATTEMPT received within time limit.

15D1/000 UNSUCCESSFUL TRY AGAIN Channel Assignment message from NCS contains

CALL ATTEMPT inappropriate information.

15D2/000 MES-ID USED MES ID and channel number is cleared in the busy lists

BY OTHER MES at LES and NCS because a new call to/from this

MES is being set up, and thus any previous call to/from
this MES must have cleared.

1C61/000 UNSUCCESSFUL TRY AGAIN Telegraphy call cleared; MES Answer back is not received

CALL ATTEMPT within time limit.

1F01/000 SUBSCRIBER Normal clearing due to instruction from relevant terrestrial

ON HOOK circuit.

1F11/000 SUBSCRIBER Terrestrial called party is busy.

BUSY

1F21/000 NO ANSWER Appropriate off-hook signalling from the terrestrial called

party is not received within the allowed time limit

1F61/000 SUBSCRIBER TRY AGAIN Failure in the relevant terrestrial circuit.

LINE FAILURE

1F62/000 SUBSCRIBER Terrestrial network cleared the call before “MES connect”

ON HOOK was received by the LES.

Saturn Bp Portable – Technical Manual

39

List of Terms

ServiceService

Service

AC Alternating Current
ACB Antenna Control Board
ADE Above Deck Equipment
ALC Automatic Level control
ANT Antenna
AOR-E Atlantic Ocean Region East.
AOR-W Atlantic Ocean Region West.
ASIC Application Specific Integrated Circuit
AU Antenna Unit, major part of MiniPhone
AUX Auxiliary
BDE Below Deck Equipment
BPSK Binary Phase Shift Keying
Bulletin Board system status information for MES
C Band band of radio frequencies from about 4.0 GHz to

6.0 GHz, used by Inmarsat links for the satellite/LES link.
CCITT International Telegraph and Telephone Consulta-

tive Committee

CES Coast Earth Station
Codec speech encoder/decoder
CPU Central Processing Unit
CRC Cyclic Redundancy Check
CTS Clear To Send
DAC Digital-Analogue Converter
dBW deciBels relative to 1 Watt
DC Direct current
DCD Data Carrier Detect
DI Destination Identification digits
Downlink radio link from the satellite down to stations on

Earth.

DSP Digital Signal Processor
DSR Data Set Ready
DSUB Data Sub-band, SCPC sub-band signalling.
DSUB Data Subminiature
DTE Data Terminal Equipment
DTR Data Terminal Ready
EEPROM Electrically Erasable Programmable Read Only

Memory

EIRP Equivalent Isotropically Radiated Power
EPROM Erasable Programmable Read Only Memory
FDMA Frequency Division Multiple Access
FIO Fax Interface Unit
GPS Global Positioning System, a satellite navigation

system.

HPA High Power Amplifier

Hz Hertz
ID Identification Digit(s)
IMN Inmarsat Mobile Number, a unique 9-digit number.
Inmarsat International Maritime Satellite Organisation
IOR Indian Ocean Region.
ISDN Integrated Services Digital Network, digital national

and international telecommunications network.
ITU International Telecommunications Union, international

organisation that oversees and compiles standards for
telecommunications.

KBPS KiloBits Per Second
L Band band of radio frequencies from about 1.5 GHz to

1.6 GHz, used by Inmarsat for the MES/satellite link.
Latitude distance north or south of the equator, measured

in degrees.
LED Light-Emitting Diode, semiconductor element that

emits light.
LES Land Earth Station, a station that interconnects fixed

telecommunications networks with the Inmarsat system;
may also be called a CES (Coast Earth Station) or a GES
(Ground Earth Station).

LES-SIG LES Signalling, SCPC mode for in-band signal­ling.

LESA Land Earth Station Assignment Channel
LESD LES Data, SCPC mode for data communications
LESI LES Interstation Signalling Channel, TDM channel

carrying signalling information to NCS.

LESV LES Voice, SCPC mode for voice communications
LHCP Left Hand Circular Polarization
LNA Low Noise Amplifier
LONG longitude
Longitude distance east or west of Greenwich meridian,

measured in degrees.

MCB Main Control Board
MCC Mobile Country Code
MCU Main Control Unit, major part of terminal; performs

all signal processing and message handling functions.
MES Mobile Earth Station, a user terminal for an Inmarsat

system; the Saturn M terminal is an MES for the Inmarsat­M system; MES may also be called SES (Ship Earth
Station) or, if on aircraft, AES (Aeronautical Earth Station).

MES-SIG MES Signalling, SCPC mode for in-band signal­ling.

MESCA MES Call Acknowledgement, random access
(Slotted Aloha) burst mode channel carrying acknowl­edgement messages for fixed-originated simplex calls.

MESD MES Data, SCPC mode for data communications
MESRP MES Response, TDMA channel carrying the

response information required for a fixed-originated call.

MESRQ MES Request, random access (Slotted Aloha)
burst mode channel carrying access request messages to
LESs for initiation of mobile-originated calls.

MESRR MES Registration channel, random access
(Slotted Aloha) burst mode channel carrying the Ocean
Registration messages required to route fixed-originated
calls.

MESV MES Voice, SCPC mode for voice communications
MHz MegaHertz
MID Maritime Identification Digits
NCRA Network Coordination Registration Acknowledge-

ment, TDM channel carrying responses to registration
messages transmitted by MESs.

NCS Network Coordination Station, station that super­vises all messages and signals sent in the Inmarsat
system; one in each Ocean Region.

NCSA NCS Assignment, TDM channel carrying channel
assignment messages.

NCSC NCS Common, TDM channel carrying signalling
messages including call announcements, Bulletin Board
and forced channel clearing.

NCSI NCS Inter-station channel used by NCS to carry
signalling information to the LES.

NCSS NCS Spotbeam, TDM channel carrying spotbeam
identification numbers.

NMEA National Marine Electronics Association, US
industrial organisation whose activities include stipulating
standards for marine navigation systems.

O-QPSK Offset Quadrature Phase Shift Keying.
OCC Operation Control Centre, Inmarsat centre that

monitors entire Inmarsat system.
Ocean Region area of coverage of a single Inmarsat

satellite, from 70°N to 70°S; there are four: Atlantic East,
Atlantic West, Pacific, Indian.

OI Originating Identification digits
OSC Oscillator
PC Personal Computer
PCM Pulse Code Modulation, analogue-to-digital signal

conversion method.

PCU Pedestal Control Unit
PLL Phase Locked Loop
POR Pacific Ocean Region
Prefix service in Inmarsat-M, two-digit prefix to number

called, keyed in to stipulate special service, such as credit­card call.

PROM Programmable Read Only Memory
Protocol the internal rules in the system that enable

communications.
PSDN Packet Switched Data Network, terrestrial network

for packet data communications.

PSTN Public Switched Telephone Network, terrestrial
network for telephone, telefax and data modem services.

QUART Quad Universal Asynchronous Receiver/Trans­mitter, provides four interfaces between parallel data
circuits and serial data circuits.

RF Radio Frequency
RHCP Right Hand Circular Polarization
ROM Read-Only Memory, microchip memory that stores

programs and/or data.

RS 232 Serial Data Interface
RS 422 Serial Data Interface
RTS Request To Send
RX IF Receiver Intermediate Frequency
Rx Receive
RXD Receive Data
SAMBA TX/RX Up/down conversion between intermedi-

ate frequency and base band.

SCC Satellite Control Centre
SCPC Single Channel per Carrier
SDM (Inmarsat-M) System Definition Manual
SES Ship Earth Station
Spot Beam (Inmarsat-M) service that divides each Ocean

Region into sub-regions, each “spotlighted” by a beam
from the region satellite; permits increasing capacity of
system.

SU Signalling Unit, 96-bit data packets transmitted on
SCPC sub-band signalling channels, to conduct system
signalling.

SU Signalling Unit, data packets
TDM Time Division Multiplexing, method of allowing

several users to share the same channel.

TDMA Time Division Multiple Access
Terrestrial Network a fixed telecommunications network,

such as a telephone network or a data network, which
connects to the Inmarsat-M system at an LES.

TUP Telephone User Part of CCITT Signalling System No 7.
TX IF Transmitter Intermediate Frequency
Tx Transmit
TXD Transmit Data
UART Universal Asynchronous Receiver/Transmitter,

provides interface between parallel data circuits and serial
data circuits.

Uplink radio link from a station on Earth up to the satellite.
UTC Coordinated Universal Time, referenced to Green-

wich Mean Time (GMT)

UW Unique Word
VSUB Voice Sub-band, SCPC sub-band signalling.
WMO World Meteorological Organization

40

Saturn Bp Portable – Technical Manual

Nera ASA
Nera SatCom AS

Bergerveien 12, PO Box 91
N-1375 Billingstad, Norway
Tel: [phone]
Fax: [phone]

www.nera.no