Satcom Resources BC1X00 User manual

Document Part No: 76-02-050A
Metrodata BC1X00
Baseband Converter Range
Installation Guide
BC1X00

Introduction
1
1 INTRODUCTION
1. 1 About the BC1X00 product range
The Metrodata Baseband Converter product range offers a transparent interface conversion
between HSSI and EIA-644 LVDS. There are two products in the family, the BC1000 offers
a HSSI DTE interface for connection to a Satellite Modem or other such HSSI DCE device,
whilst the BC1100 provides a HSSI DCE interface for connection to a Router, or other such
HSSI DTE device.
The Baseband Converter operates at data rates up to 51.84MBits and as such enables users
to fully utilise their LVDS interface capabilities.
One application is with an LVDS Serial Encryptor. In order to interface the LVDS to real world
devices, the BC1X00 offers conversion to the HSSI standard as shown below:
Figure 1. 1 BCX00 application
The BC1X00 range of converters has been designed to be plug and go, conforming to
appropriate standards, physically very compact, and rack mountable in sets of 2 using a
dual face plate, or 18 units in a rack mount kit for large installations.
Metrodata are continually developing new models, so if the interface combination required
is not listed in this guide, please contact Metrodata Sales Dept.
1. 2 Safety
Where electrical signal cabling is connected to BC1X00 models, do not connect to cabling
which would be required by BS6701 to be equipped with over-voltage protection.
The following ports are designated SELV (Safety Extra Low Voltage) within the scope of EN
41003:
HSSI port
EIA-644 LVDS DTE port
These ports should only be connected to SELV ports on other equipment in accordance with
EN60950 clause 2.3.
ROUTER
BC1100
Crypto
Satellite
Modem
BC1000
Satellite dish
HSSI
HSSI LVDS LVDS
RED SIDE
BLACK SIDE
LVDS

Introduction
2
1. 3 Electromagnetic Compatibility
In order to ensure EMC compliance all electrical signal and data cables and connectors must
use a screened connector shell with a screened cable. The cable screen must be terminated
to the screened connector shell and not connected to any pins of the connector. Failure to
use the correct connector may compromise EMC compliance.
1. 4 EN55022 Declaration
BC1X00 units are a Class A product. In a domestic environment it may cause radio
interference in which case the user may be required to take adequate measures.
1. 5 FCC Declaration
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct
the interference at its own expense.
1. 6 RoHS Compliance
The BC1X00 is compliant with the EU RoHS directive 2002/95/EC. The RoHs directive bans
the use of six hazardous materials in products placed on the market after July 1st 2006. The
six banned materials are Lead, Mercury, Hexavalent Chromium, Polybrominated Biphenyls,
Polybrominated Diphenyl Ethers and Cadmium.
To ensure product reliability, the RoHS directive exempts Network Infrastructure Equipment
including the BC range, allowing the use of standard leaded solder; as such the BC range is
manufactured using leaded solder.
1. 7 Power Supply
The BC1X00 is powered by an internal mains-fed power supply. The mains input voltage is
100-250VAC, 50/400Hz with a maximum current of 50mA. The units are fitted with an
internal 1A fuse. Mains power is connected via an IEC inlet on the rear panel.
An alternative -48VDC power supply is available on all units as a custom order item. The
supply definition of the DC supply is minus 36 to minus 72 VDC, 200-100 mA. DC power is
supplied via a 3 pin Buccaneer socket fitted to the rear panel. A Buccaneer plug is supplied
with the unit for customer’s own wiring. The connections are labelled on the rear panel of the
BC1X00 as shown in the schematic below.
Figure 1. 2 Buccaneer DC socket
Pin1
-48V
Pin3
0V
L
_
_

Introduction
3
The power consumption of each model in the range is shown below, together with the current
consumption over the operating voltage ranges.
The BC1X00 must be connected to mains safety earth for correct operation. The BC1X00
power supply should be connected to a supply socket that is physically located close to the
unit and is easily accessible.
Safety Notes: Excessive voltages are present inside the unit. There are no user serviceable
parts inside the unit, and the cover should not be removed by unqualified personnel. The unit
must not be exposed to damp or condensing conditions.
Product Watts Power
Consumption
Current Range mA
for 100-250 VAC
Current Range mA
for -40 to -72 VDC
BC1X00 6.0 50 - 25 200 - 100

BC1X00 hardware
4
2 BC1X00 HARDWARE
2. 1 BC1X00 rear panels
All connections to and from the BC products are made through the rear panel, examples of
which include both DC and AC models are shown below:
Figure 2. 1 BC1X00 range rear panels showing DC and AC models
2. 2 Unpack and inspect the equipment.
The carton should contain a single Metrodata BC1X00 model and for UK shipments only, a
power cable. If there is any visible damage, do not attempt to connect the device. Contact
your Supplier or Metrodata Technical Support for advice and assistance. The rear panels of
typical BC1X00, units are shown above in this section.
Note that the current rating shown on the rear panel label is the maximum current, which
corresponds to the lowest input voltage.
Made in
UK
HSSI DCE (To Router)
EIA-644/LVDS DTE
Pin1
-48V
Pin3
0V
L
_
_
Made in
UK
HSSI DTE (To Modem)
EIA-644/LVDS DCE

BC1X00 hardware
5
2. 3 LVDS EIA-644/LVDS interface
The LVDS interface is presented on a 25-way female D-type connector. The BC1000
presents a DCE interface on a female connector. The BC1100 presents a DTE interface on
a male connector. The rear panel connector layout is shown below:
Figure 2. 2 EIA/LVDS interface for BC1X00
Pin Signal name Symbol Direction
1 Shield
2 Send Data(A) SD(A) To DCE
3 Receive Data(A) RD(A) From DCE
4 Request to Send (A) To DCE
5 Clear to Send (A) From DCE
6 Data Set Ready (A) From DCE
7 Signal Ground Ground
8 Data Carrier Detect (A) RR(A) From DCE
9 Receive Timing(B) RT(B) From DCE
10 Data Carrier Detect (B) RR(B) From DCE
11 Terminal Timing(B) TT(B) To DCE
12 Send Timing(B) ST(B) From DCE
13 Clear to Send (B) From DCE
14 Send Data(B) SD(B) To DCE
15 Send Timing(A) ST(A) From DCE
16 Receive Data(B) RD(B) From DCE
17 Receive Timing(A) RT(A) From DCE
18
19 Request to Send (B) To DCE
20 Data Terminal Ready (A) To DCE
21
22 Data Set Ready (B) From DCE
23 Data Terminal Ready (B) To DCE
24 Terminal Timing(A) TT(A) To DCE
25

BC1X00 hardware
6
2 . 3. 1 HSSI DTE Port
The HSSI interface is presented on a 50-way sub-miniature rear panel connector as per EIA-
613 with the layout shown in the table below.
Figure 2. 3 BC1X00 HSSI interface
Note: The Signals Loopback A/B/C and TM are not used by the BC1X00 with inputs ignored,
and outputs set to the normal operational state OFF.
Pin
(+)
Pin
(-)
Signal Signal name Direction
1 26 SG Signal Ground
2 27 RT Receive Timing(A) To DTE
3 28 CA DCE Available(A) To DTE
4 29 RD Receive Data(A) To DTE
5 30 LC Loopback C To DTE
6 31 ST Send Timing(A) To DTE
7 32 SG Signal Ground
8 33 TA DTE Available(A) To DCE
9 34 TT Terminal Timing(A) To DCE
10 35 LA Loopback A To DCE
11 36 SD Send Data(A) To DCE
12 37 LB Loopback B To DCE
13 38 SG Signal Ground
14 39
15 40
16 41
17 42
18 43
19 44 SG Signal Ground
20 45
21 46
22 47
23 48
24 49 Test Mode To DTE
25 50 SG Signal Ground

BC1X00 hardware
7
2. 4 Configure the BC1X00
The bit-switches on the underside of the unit must be set for the operation you require. The
options for setting up are described in the next section of this guide. Note that set-up
instructions are separately described for the BC1000 and the BC1100.
2. 5 Safety note on port connections
Ports that are identified as SELV in this guide must only be connected to SELV ports on other
equipment in accordance with EN60950 Clause 2.3.
2. 6 Connect the HSSI port.
The HSSI port of the BC1X00 is presented on an industry standard miniature 50 way
connector. The same connector is used for both the BC1000 DTE and BC1100 DCE ports.
HSSI is a fault tolerant interface and should not be damaged by connecting similar port
types- e.g. DTE to DTE or DCE to DCE. In such circumstances, however, normal operation
will not be possible.
2. 7 EIA-644/LVDS port
The LVDS port is presented on a 25-way D type connector. The BC1000 presents a DCE
interface on a female connector. The BC1100 presents a DTE interface on a male connector.
The LVDS interface may be damaged by incorrect connection.

BC1X00 hardware
8
2. 8 Optional rackmounting procedure
Rackmounting kits may be used to mount two BC1X00 units side by side in a 19” rack. The
kit, part number 80-05-256, has a recessed plate to permit cable or fibre bends to be made
within the envelope of the 19” cabinet. It has a cut out to provide access to all the connectors
on the rear panel of the BC1X00.
Figure 2. 4 Twin unit rack mounting
To install the BC1X00 first remove the two rear panel screws securing the unit lid. Fasten
the BC1X00 into the rack mount adaptor plate using the screws just removed. Then secure
the rack mounting plate complete with one or two BC1X00 units into the 19” rack using the
locating holes at the ends of the adaptor plate. Ensure that the bit switches are set correctly
before installing the rack mount kit.
2. 9 Power up the BC1X00.
The unit requires 100-250 VAC, 50-60 Hz AC supply. An alternative -48VDC power supply
is available as a custom order item for all models. See Section 2 for further details of power
consumption.
When the power supply is connected, the green PWR LED on the rear panel should be ON
to indicate that the unit is operational. If the LED is OFF, mains power is not being supplied
to the unit.
Recessed space to accommodate fibre bends
BC1100 BC1000
Part No: 80-05-256
Made in
U K
HSSI DCE (To Router)
EIA-644/LVDS DTE)
Pin1
-48V
Pin3
0V
L
_
_
Made in
U K
HSSI DTE (To Modem)
EIA-644/LVDS DCE)

BC1000 Configuration & Operation
9
3 BC1000 CONFIGURATION & OPERATION
3. 1 BC1000 bit-switch configuration
The base panel bit-switches must be set correctly before making any connections to the unit.
There is an explanatory label on the base of the unit defining the bit-switch options. This is
shown below:
Figure 3.1 BC1000 base label example
3 . 1. 1 LVDS DCD
This selects the operating mode for the LVDs DCD control output. LVDS DCD may be set to
the ON state, or alternatively set to follow the state of the DCE supplied HSSI CA control
input.
3 . 1. 2 LVDS CTS
This selects the operating mode for the LVDS CTS control output. LVDS CTS may be set to
the ON state or alternatively set to follow the state of the DCE supplied HSSI CA control
input.
3 . 1. 3 LVDS DSR
This selects the operating mode for the LVDS DSR control output. LVDS DSR may be set
to the ON state or alternatively set to follow the state of the DCE supplied HSSI CA control
input.
3 . 1. 4 Bit-switch 4
This switch is not used on the BC1000, and should be set to the ON state for normal
operation.
Bold characters = Factory Default
Serial No:
BC1000
EIA-644/LVDS CONVERTER (AC)
Part Number 80-05-556
Metrodata Ltd
TW20 8RY UK
Tel [phone]
Fax [phone]
For product manual
and other information:-
www.metrodata.co.uk
Manufactured in the UK
17-08-615XA
OFF
ON
This device complies with part 15 of the FCC rules.
Operation is subject to the following two condtions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received
including interference that may cause undesired operation.
Bitswitch Control ON
1
2
3
4
5
6
7
8
LVDS DCD
HSSI TT Select
LVDS ST
LVDS CTS
ON
LVDS DSR
ON
ON
ON
LVDS TT
OFF
Follow CA
Follow CA
Follow CA
LVDS ST
Invert
Normal
HSSI TA
HSSI TA
ON
Follow RTS
Follow DTR
Normal

BC1000 Configuration & Operation
10
3 . 1. 5 HSSI TA
These two switches (5 and 6) select the operating mode for the HSSI TA output. The optional
settings are shown in the table below:
Figure 3.2 HSSI TA operating modes
3 . 1. 6 HSSI TT Select
This selects the source for the HSSI TT output. In the ON position HSSI TT is sourced from
the LVDS TT input. In the OFF position the HSSI TT is sourced from the local LVDS ST
output.
LVDS ST should only be selected when the LVDS DTE equipment does not provide a source
synchronous LVDS TT signal.
3 . 1. 7 LVDS ST
This switch is only used when the HSSI TT select is in the OFF state, selecting LVDS ST as
the source for HSSI TT.
At higher speeds the round trip delays introduced by the cable may be such that the data
change is coincident with the data sample point. Inverting ST will enable higher speed
operation when longer cables are used.
Switch 5 Switch 6 HSSI TA Operation
ON ON Set TA ON
OFF ON Set TA to follow the LVDS RTS input
ON OFF Set TA to follow the LVDS DTR input
OFF OFF Set TA to follow both RTS and DTR with
TA ON when both RTS and DTR are ON

BC1000 Configuration & Operation
11
3. 2 BC1000 Operation
The data path through the BC1000 is shown in the figure below:
Figure 3.3 BC 1000 Operation diagram
The basic purpose of the BC1000 is to provide a transparent conversion between the HSSI
and LVDS interfaces. The BC1000 effectively converts a HSSI DCE into an LVDS DCE.
Thus, the BC1000 can effectively provide an LVDS interface for a standard HSSI DCE
device such as a satellite modem.
In the receive direction, Receive Data (RD) and Receive Timing (RT) are passed through
unchanged. The LVDS control signals CTS/DCD and DSR may either be set to ON, or to
enable flow control, to be individually set to follow the state of the HSSI CA state. A common
setting will be CTS and DSR set to ON, whilst the DCD is set to follow HSSI CA to indicate
to the LVDS device that the Receive Data is valid.
In the transmit direction the BC1000 provides for both Co-Directional and Contra-Directional
LVDS operation. For a Co-Directional LVDS interface HSSI ST is passed transparently
through the BC1000. The LVDS device will then use this clock to generate the LVDS along
with the LVDS SD (Send Data). Data and Clock are then passed through.
Where the LVDS device does not return LVDS TT, the BC1000 uses HSSI ST to sample the
data from the LVDS device and to generate the HSSI TT. Contra-Directional interfaces are
dependent upon cable lengths and round trip delays, and as such the LVDS ST output may
be inverted to overcome cable induced delays.
The HSSI TA control may be set to ON, or to follow RTS or DTR or both signals. A common
setting is to follow DTR to indicate that the Terminal is Ready.
EIA-644/LVDS DTE BC1000 EIA-644 DCE Baseband Converter
RT
RD
CTS
DCD
DSR
ST
TT
SD
RTS
DTR
RT
RD
CTS
DCD
DSR
ST
TT
SD
RTS
DTR
HSSI DCE
RT
RD
CA
ST
TT
SD
TA
Individually configure to
follow CA or set to ON
Configurable to select
HSSI ST or EIA-644 TT as
source for HSSI TT output
Configurable to follow
RTS/DTR or set to ON
DQ
RT
RD
CA
ST
TT
SD
TA

BC1100 Configuration & Operation
12
4 BC1100 CONFIGURATION & OPERATION
4. 1 BC1100 bit-switch configuration
The base panel bit-switches must be set correctly before making any connections to the unit.
There is an explanatory label on the base of the unit defining the bit-switch options.
Figure 4.1 BC1100 base label example
4 . 1. 1 HSSI CA
The three bit-switches 1,2 and 3 select the operating mode for the HSSI CA control signal.
Figure 4.2 HSSI CA states
Note: When multiple controls are selected, HSSI CA will be OFF if any of the inputs are OFF.
A common setting is for CA to follow LVDS DCD.
Switch 1 Switch 2 Switch 3 HSSI CA State
ON ON ON ON
OFF ON ON Follow the LVDS CTS input
ON OFF ON Follow the LVDS DCD input.
OFF OFF ON Follow CTS and DCD
ON ON OFF Follow LVDS DSR
OFF ON OFF Follow DSR and CTS
ON OFF OFF Follow DSR and DCD
OFF OFF OFF Follow DSR and DCD and CTS
Bold characters = Factory Default
Serial No:
BC1100
EIA-644/LVDS CONVERTER (AC)
Part Number 80-05-557
Metrodata Ltd
TW20 8RY UK
Tel [phone]
Fax [phone]
For product manual
and other information:-
www.metrodata.co.uk
Manufactured in the UK
Bitswitch Control ON
1
2
3
4
5
6
7
8
HSSI CA
LVDS TT
HSSI ST
HSSI CA
ON
HSSI CA
ON
ON
ON
HSSI TT
OFF
Follow CTS
Follow DCD
Follow DSR
LVDS ST
Inverted
LVDS RTS
LVDS DTR
ON
Follow TA
Follow TA
17-08-621XA
OFF
ON
This device complies with part 15 of the FCC rules.
Operation is subject to the following two condtions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received
including interference that may cause undesired operation.
Normal
Normal

BC1100 Configuration & Operation
13
4 . 1. 2 Bit-switch 4
This switch is not used on the BC1100, and should be set to the ON state for normal
operation.
4 . 1. 3 LVDS RTS
This switch controls the state of the LVDS RTS output. With the bit-switch set to the ON
position, the LVDS RTS is set ON. With the bit-switch in the OFF position, the RTS control
is set to follow the HSSI TA input.
4 . 1. 4 LVDS DTR
This switch controls the state of the LVDS DTR output. With the bit-switch set to the ON
position, the LVDS DTR is set ON. With the switch in the OFF position, the DTR control is
set to follow the HSSI TA input.
4 . 1. 5 LVDS TT
In order to support Contra-Directional LVDS interfaces the source of the LVDS TT output is
selectable. With the bit-switch set to the ON position, the LVDS TT is sourced directly from
the HSSI TT signal.
With the bit-switch in the OFF position, the incoming HSSI TT is used to latch the data into
a buffer, from whence it is clocked out using LVDS ST to provide a Contra-Directional
interface.
4 . 1. 6 HSSI ST
In order to support Contra-Directional interface with long cables the HSSI ST output may be
inverted.

BC1100 Configuration & Operation
14
4. 2 BC1100 Operation
The data path through the BC1000 is shown in the figure below:
Figure 4.3 BC 1100 Operation diagram
The basic purpose of the BC1100 is to provide a transparent conversion between the HSSI
and LVDS interfaces. The BC1100 effectively converts an LVDS DCE into a HSSI DCE
which may be connected to a standard HSSI DTE device such as a router.
In the receive direction, Receive Data (RD) and Receive Timing (RT) are passed through
unchanged. The HSSI CA control signal may either be set to ON, or to enable flow control,
be individually set to follow the state of either LVDS CTS/DCD or DSR. A common setting
will be HSSI CA set to follow LVDS DCD to indicate to the LVDS device that the Receive
Data is valid.
In the transmit direction the BC1100 provides for both Co-Directional and Contra-Directional
LVDS operation. For a Co-Directional LVDS interface LVDS ST is passed transparently
through the BC1100. The HSSI device will then use this clock to generate the HSSI TT along
with the HSSI SD (Send Data). Data and Clock are then passed through.
Where the LVDS device does not use LVDS TT, the BC1100 uses LVDS ST to re-time the
data from the HSSI device and to generate the LVDS TT. Contra-Directional interfaces are
dependent upon cable lengths and round trip delays, and as such the HSSI ST output may
be inverted to overcome cable induced delays.
The LVDS RTS and DTR controls may be set to ON, or to follow HSSI TA. A common setting
is RTS ON and DTR set to follow TA.
HSSI DTE Router BC1100 EIA-644 DTE Baseband Converter
RT
RD
CA
ST
TT
SD
TA
RT
RD
CA
ST
TT
SD
TA
EIA-644/LVDS DCE
(KIV-7 RED)
RT
RD
CTS
DCD
DSR
ST
TT
SD
RTS
DTR
Configurable to follow
TA or set to ON
DQ
DQ
RT
RD
CTS
DCD
DSR
ST
TT
SD
RTS
DTR
Configurable to follow
DCD/DSR/CTS or set to ON
FIFO
Buffer
HSSI SD Latched in to BC1100 FIFO
Buffer using HSSI TT. SD clocked out
of FIFO using either HSSI TT or EIA-644 ST.

specifications
15
5 SPECIFICATIONS
Disclaimer
Metrodata Ltd makes no representations or warranties with respect to the contents hereof
and specifically disclaims any implied warranties or merchantability or fitness for any
particular purpose. Further, Metrodata Ltd reserves the right to revise this publication and to
make changes from time to time in the content hereof without obligation of Metrodata Ltd to
notify any person of such revision or changes.
Trademarks
The Trademarks of other Corporations which may be used in this manual are hereby
acknowledged.
Copyright © 2006 by Metrodata Ltd, All Rights Reserved
EIA-644 Interface Definition
Mode BC1000 DCE
Presentation 25-way Female D-type
Mode BC1100 DTE
Presentation 25-way Male D-type
HSSI Interface Definition
Mode BC1000 DTE or BC1100 DCE
Presentation Miniature 50-way Female connector
General Definition
Power supply 100-250 VAC, 50-60 Hz, 50 mA or
minus 36 to minus 72 VDC, 200-100mA
Dimensions 202 x 132 x 44 mm (w x d x h) Enclosure only
202 x 132 x 47 mm (w x d x h) Overall including feet
Environmental Range
Ambient Temperature 0degC to +50degC
Storage Temperature -20degC to +70degC
Relative Humidity 0% - 95% non condensing
Barometric Pressure 86 KPa - 106 KPa