Black Box Network Services
464 Basingstoke Road, Reading, Berkshire, RG2 0BG
Tech: 0118 965 6000 | www.blackbox.co.uk
BLACK BOX
®
User Manual
E3/DS3 Fibre Extender
CONTENTS
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3.1.4 Unbalanced BNC E3/DS-3 G.703 Customer port 8
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01 pooL tseT2.2.3
01 tuo dliuB eniL3.2.3
3.2.4 Scrambler - current version serial no 60128 and above 10
3.2.5 Scrambler - old version serial no 60127 and below 10
11
snoitacificepS
3.3
Introduction
1
1 INTRODUCTION
1.1 About the products
The Black Box range of Fibre Converters tabulated below provide a simple economic
way of converting from one type of transmission medium to another. Examples include:
Electrical signals on copper to optical signals on fibre, and vice-versa.
Single-mode optical fibre to multimode and vice-versa.
Model Customer Interface Line Interface
MTU9230 E3/DS-3 G.703 via BNC 75 ohm Dual SC Multi-mode fibre
MTU9240 E3/DS-3 G.703 via BNC 75 ohm Dual SC Single-mode short haul fibre
Introduction
2
The MTU9230/MTU9240 have 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. FC units often enable substantial
savings to be made in cable costs by utilising the cheapest effective cable type without
incurring the costs of additional router or switch interfaces.
We are continually developing new models, so if the interface combination required
is not listed in this guide, please contact us.
1.2 Safety
Where electrical signal cabling is connected to the units, do not connect to cabling which
would be required by BS6701 to be equipped with over-voltage protection. Electrical signal
ports should only be connected to SELV ports on other equipment in accordance with
EN60950 clause 2.3.
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
FC 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 WEEE Directive
Both units are covered by Directive 2002/96/EC (OJ:L37/24/2003) on waste electrical and
electronic equipment (The WEEE Directive). Units must therefore not be disposed of in
a standard landfill.
Introduction
3
1.7 Power Supply
Both units are powered by an internal mains-fed power supply. The mains input voltage is
100-250VAC, 50/400Hz. An alternative -48VDC power supply is available on all units as a
custom order item. The power consumption of each model in the range is shown below,
together with the current consumption over the operating voltage ranges.
An alternative -48VDC or -24 VDC power supply is available on most units as a custom order
item.
The supply definition of the -48VDC 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.
The supply definition of the -24VDC supply is minus 12 to minus 36 VDC, 700-125 mA. DC
power is supplied via a 2 pin Buccaneer socket fitted to the rear panel. The surrounding label
is cloured blue for the -12V/-24 option.
A Buccaneer plug is supplied with the unit for customer’s own wiring. The connections are
labelled on the rear panel of the unit as shown in the schematics below.
Pin1
-48V
Pin5
Pin3
0V
VDC IN
40-72V/200mA
Pin2
0V
V
DC IN
12-24V/700mA
Pin5
12-24V
Figure 1. 3 Buccaneer DC sockets
The units must be connected to safety earth for correct operation. The FC power supply
should be connected to a supply socket that is physically located close to the unit and is
easily accessible.
The power consumption of the units is shown below, together with the current
consumption over the operating voltage ranges.
power consumption
Product Watts Power
Consumption
100-250 VAC
Current Range
mA
-36 to -72 VDC
Current Range
mA
-12 to -36 VDC
Current range
mA
MTU9230 & MTU9240 6.0 60 - 25 200 - 100 600-200
Introduction
4
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.
Unpacking & Installation Procedure
5
2 UNPACKING & INSTALLATION PROCEDURE
2. 1 Unpack and inspect the equipment.
The carton should contain a single unit and for UK models, a power cable.
If there is any visible damage, do not attempt to connect the device. Contact your Supplier
or Black Box Technical support for advice and assistance.
2. 2 Optional rackmounting procedure
Rackmounting kit Part No MTU9000M-RACK may be used to mount two FC units side by
side in a 19” rack. First remove the two rear panel screws securing each unit’s lid. Fasten the
2 units to the rack mount adaptor plate using the screws that you have removed, as shown in
the illustrations below.
ALARM
EXT
Alarm
STM-1 MULTIMODE
STM1 G.703
Remove screw
Remove screw
Figure 2.1 Unit rear panel
Then secure the rack mounting plate complete with the two units to the 19” rack using
the locating holes at the ends of the adaptor plate. The recessed twin unit rack will accept
either AC or DC FC models.
ALARM
EXT
Alarm
STM-1 MULTIMODE
STM1 G.703
A
LARM
EXT
Alarm
STM-1 MULTIMODE
STM1 G.703
Figure 2.2 Twin unit rack mounting
If you wish to use the optional 18 unit mounting rack, instructions are provided with the rack,
part number MTU9000M-18RACK-AC (AC Mains) or MTU9000M-18RACK-DC (DC Supply).
Unpacking & Installation Procedure
6
2. 3 Power up the units
The unit requires 100-250 VAC, 50-60 Hz AC supply, drawing less than 50mA when
operating.
Alternatively, a -48VDC power supply is available as another option for all models.
The DC power options are -36 to -72 VDC (-48VDC), or -12 to -36 VDC (-24VDC), using a
Buccaneer type connector. See Section1 for further details on power consumption.
Plug a power cable into the back of the unit and switch on. Check that the Alarm LED on
the rear panel is illuminated red or green, flashing or steady. If the LED is off, power is not
being supplied to the unit.
2. 4 Connect the Customer and Network ports.
When all the ports are connected, the Alarm LED should give a steady Green display. Setup information for both models is contained in each section of this manual.
2. 5 Optionally connect the alarm relay
Many units offer an Alarm relay to provide an external warning of problems which may
arise. The interface is presented on an RJ45 connector, and offers both normally open and
normally closed contacts. Maximum contact rating is 1.5 Amp at 125 VDC. Normal is the
powered up, non-alarmed state. The connections are shown in the table below:
Figure 2.3 Alarm relay pinout
Pin Contact
1 Normally closed
2 Normally open
3 Common
4 Not connected
5 Not connected
6 Not connected
7 Not connected
8
Not connected
E3/DS3 to Fibre converter
7
5 E3/DS3 TO FIBRE CONVERTER
5.1 Rear panel
The E3/DS-3 line is connected via a pair of BNC connectors on the rear panel. The fibre
connection is via a Dual SC connector on the rear panel.
ALARM
EXT
MULTIMODE
LINE
Alarm
GRN
OK
Figure 5.1 MTU9230 rear panel
5.1.1 Power connector
AC mains power is supplied via an IEC connector. The units have an integral power supply
operating over the range 100-250 VAC. It draws less than 50mA of current when operating.
Alternative -48 VDC and -24VDC power supplies are available. See Section 1 of this manual
for further details of this option and consumption data.
The units must be connected to safety earth for correct operation. The MTU9230 power
supply should be connected to a supply socket that is physically located close to the unit and
is easily accessible.
5.1.2 External alarm relay
Both models offer an Alarm relay to provide an external warning of problems which may
arise. The interface is presented on an RJ45 connector, and offers both normally open and
normally closed contacts. Maximum contact rating is 1.5 Amp at 125 VDC. Normal is the
powered up, non-alarmed state. The connections are shown in the table below:
Figure 5.2 Alarm relay pinout
Pin Contact
1 Normally closed
2 Normally open
3 Common
4 Not connected
5 Not connected
6 Not connected
7 Not connected
8 Not connected
E3/DS3 to Fibre converter
8
5.1.3 LED Alarms
There is a single multi-state alarm LED mounted on the rear panel. Its status options are
shown below:
Figure 5.3 LED status
5.1.4 Unbalanced BNC E3/DS-3 G.703 Customer port
The customer equipment is connected to the BNC connectors at the rear of the unit:
Figure 5.4 BNC connection
Cable lengths should be restricted to those defined below:
Figure 5.5 Cable lengths
Note: The total maximum attenuation of each of the cables attached to the BNC (network)
port must not exceed 6dB when measured at 1024 MHz. The frequency/attenuation
characteristic of the cables attached to this port shall follow a root frequency law.
LED Status Indication
Off No mains power present
Red steady E3/DS-3 Alarm
Red/Off flashing E3/DS-3 and Fibre Alarm
Green/Off flashing Fibre Alarm
Green steady Status OK
Pin Function
Tip Signal
Ring Shield
Cable E3 Max Length
(metres)
DS-3 Max Length
(metres)
UR202 180 155
RG59U 150 130
BT2002 160 140
BT2003 165 140
E3/DS3 to Fibre converter
9
5.2 Base panel & bit-switches
The base label and bit-switch set-up shown in Figure 5.6 below is the current version
applicable to units with serial number 60128 and upwards.
The earlier version shown in Figure 5.7 below applies to serial numbers 60127 and below.
The key difference between the two versions is in the scrambler facility. This is explained
below.
Serial No:
MTU9230 E3/DS3 - MM
MEDIA CONVERTER (AC)
17-08-558C(A)
SPARE
Red stea dy
Off
Red/Off Flashing
Green s teady
Green/O ff Flashing
No ma ins p ower present
Fibre Alarm
Status OK
Status LED
Meanin g
E3/DS- 3 Alarm
SELECT
DS3
E3
__
LINE BUILD
OUT DS3 ONLY
>255 FT
<255 FT
___
SCRAMBLER
X^
3X^23
___
TEST
LOOP
OFF
ON
___
Bold
Charac ters = Factory Defau lt
Serial No:
MTU9240 E3/DS3 -SM-SH
MEDIA CONVERTER (AC)
17-08-564C(A)
SPARE
Red stea dy
Off
Red/Off Flashing
Green s teady
Green/O ff Flashing
No ma ins p owe r present
Fibre Alarm
Status OK
Status LED
Meaning
E3/DS- 3 Alarm
SELECT
DS3
E3
__
LINE BUILD
OUT DS3 ONLY
>255 FT
<255 FT
___
SCRAMBLER
X^
3X^23
___
TEST
LOOP
OFF
ON
___
Bold
Charac ters = Factory Defau lt
Serial No:
MTU9230 E3/DS3 - MM
MEDIA CONVERTER (AC)
17-08-558B
Serial No:
MTU9240 E3/DS3 -SM - SH
MEDIA CONVERTER (AC)
17-08-564B
SELECT
DS3
E3
SPARE
LINE BUILD
OUT DS3 ONLY
>255 FT
<255 FT
SELECT
DS3
E3
SPARE
LINE BUILD
OUT DS3 ONLY
>255 FT
<255 FT
Red stea dy
Off
Red/Off Flashing
Green s teady
Green/O ff Flashing
No ma ins p ower present
Fibre Alarm
Status OK
Status LED
Meanin g
E3/DS- 3 Alarm
Red stea dy
Off
Red/Off Flashing
Green s teady
Green/O ff Flashing
No ma ins p ower present
Fibre Alarm
Status OK
Status LED
Meanin g
E3/DS- 3 Alarm
TEST
LOOP
OFF ON
OFF ON
SCRAMBLER
TEST
LOOP
OFF ON
OFF ON
SCRAMBLER
Figure 5.6 base label current examples
Figure 5.7 base label early examples
E3/DS3 to Fibre converter
10
The base panel bit-switches must be set for correct operation as below:
5.2.1 E3/DS-3
This switch is set to specify the Customer side line type. The default setting is E3.
5.2.2 Test Loop
This switch initiates an outside test loop on both ports
5.2.3 Line Build out
This switch boosts the DS-3 signal strength for long lines of over 255ft. The default setting
is <255 feet.
5.2.4 Scrambler - current version serial no 60128 and above
The scrambler function modifies the E3/DS-3 line traffic with an algorithm designed to break
up long strings of 1’s or 0’s so that clock synchronisation is not lost or degraded by the long
strings. The traffic is unscrambled on arrival at the far end.
Two scrambler algorithms are offered by setting the scrambler bit-switch, with the default
option being X^23 and the alternative being X^3 . Note that X^23 is the more powerful
scrambler and should be used whenever possible, whilst X^3 is available for use for legacy
reasons.
5.2.5 Scrambler - old version serial no 60127 and below
The scrambler function modifies the E3/DS-3 line traffic with an algorithm designed to break
up long strings of 1’s or 0’s so that clock synchronisation is not lost or degraded by the long
strings. The traffic is unscrambled on arrival at the far end.
The scrambler bit-switch offers either scrambler OFF or X^3scrambling. It is recommended
that where available, payload scrambling should also be enabled on the attached
equipment, especially where framed or channelised data is used.
E3/DS3 to Fibre converter
11
5.3 Specifications
Units Specification
E3/DS-3 Interface Port: G.703 compliant, Sensitivity -10dB.
Interface type: BNC 75 Ohm unbalanced coax
Line coding: E3: HDB3 DS-3: B3ZS
E3 Bit rate: 34.368 Mbps +/- 20ppm
DS-3 Bit rate: 44.736 Mbps +/- 20ppm
Jitter Tolerance Per G.823.
Barrier EN 41003 compliant barrier provided on the E1 interface.
Diagnostics Loop Test initiated by Bit-switch
MTU9230 Fibre interface
G.957, Dual SC Multi-mode 62.5/125 um
Bit rate: up to 155.52Mbps
Transmit power: -14 to -19 dBm
Max Rx input power: -14 dBm
Receive sensitivity: -14 to -30 dBm
Optical loss budget: = -19-(-30) = 11dB
MTU9240 Fibre interface
G.957, Dual SC SH Single-mode 8/125 um (Short haul)
Bit rate: up to 155.52Mbps
Transmit power: -8 to -15 dBm
Max Rx input power:-8 dBm
Receive sensitivity: -8 to -31 dBm
Optical loss budget: = -15-(-31) = 16dB
Safety EN41003, EN50082
EMC EN55022, EN50082
Power supplies 100-250 VAC, 50-60Hz, 35 mA to 15mA or
-40 to -72 VDC, 100 to 50mA
-12 to -36VDC, 700 to 200mA
See Section1 for power consumption detailed data
Dimensions 202 x 132 x 44 mm (w x d x h) Enclosure only (1U )
202 x 132 x 48 mm (w x d x h) Overall including feet
Ambient Temperature 0degC to +50degC
Storage Temperature -20degC to +70degC
Relative Humidity 0% - 95% non condensing
Sales
0118 965 6150
Website
www.blackbox.co.uk
Technical Support
0118 965 6000
E-mail
info@blackbox.co.uk
BLACK BOX
®
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