Meridian 2300M Series User manual

14 Jacaranda Court
BEECHMONT QLD 4211, Australia
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.teletechnique.com
ABN 34 383 278 861
Teletechnique is registered in the State of Queensland Australia as business number BN 21 956 534
1 August 2011
To whom it may concern
MERIDIAN TECHNOLOGIES INC PRODUCTS IN AUSTRALIA
Messrs Meridian Technologies Inc of Elmont NY, United States of America, design
and manufacture at their headquarters in Elmont (near New York) an extensive
range of quality equipment for use in fibre optic networks for broadcasting, CCTV,
and industrial automation.
Teletechnique is proudly representing Meridian Technologies Inc in Australia and
supports the products with local expertise.
For product information and requests for quote, please call 07 3103 0750.
Yours faithfully
Ger Vloothuis
General Manager

NetworkDiagnostics-LocalandRemoteAccess
SurfaceMountTechnology(SMT) forHighReliabilityandRepeatability
FaultTolerantSelf-HealingRingorLinearBusTopology
Multiple-MasterCapability
2x16CharacterLCDDisplayoneachModem
AsynchronousDataRatesupto125KbpsNRZ
UsesDigitalFPGATechnology
DataProtocolIndependent
RS-232D,RS-422,RS-485(2and4wire)andTTL
TrueTri-StateSensing(notimeoutsneeded)
SingleHandshake–RS-232D(RTS&CTS)
or2Channel125KbpsDataMultiplexer
FullHandshakingAvailable–RS-232D
DataRe-clocked&RegeneratedateachModem
99NodeCapability
IndividuallyAddressableModems
Anti-streaming(on/offorvariabletime)
LocalandRemoteLoopBackTest
LocalDryContactAlarm (N.O.)
BuiltInDualInputPowerRedundancy
AlarmedBatteryBackup
Dual Input: 12 VDC - 35 VDC, 9 VAC - 24 VAC
HotSwappableInputPower
FullyCompatiblewithSpectraSmart™PCBasedNetworkManagement
Build In BER Tester w/GUI
ESDInputProtection
ExceedsNEMATS-1/TS-2andCaltransSpecifications
FEATURES:
•
•
•
•
•
•
•
•
•
•
•
DESCRIPTION:
The2300Misastateoftheartselfhealing,counterrotatingmulti-dropdata
modemdesignedtoprovidetheuserwithtroublefreedatatransmissionin
bothringandstringconfigurations.Inadditiontobeingequippedwithallofthe
expectedfeatures, localandremotediagnosticcapabilitiesareincludedin
eachmodem.Theuser-friendlydiagnosticsmenucanbeaccessedviatwo
smallbuttonslocatedonthefrontpanel.Thesebuttonsareusedforscrolling
throughthe menufunctions.Thestatusofanyothermodemcanbeviewed
on the SpectraSmartTM System. Field technicians can perform local and
remotediagnostics without theaid of aPC. Parameters viewableon the
LCDdisplayareinternalmodemtemperature,powersupplyvoltages,opti-
calringstatus,locationoffiberbreaks,unitfailures andmanyothercritical
parameters.Ifaparameterisexceeded,aflashinglightandaudiblealarm
areactivatedatallmodems.Bothprimaryandsecondaryringsaremoni-
toredsimultaneouslybythenetworkdiagnostics.Iftheprimaryringisbro-
ken,the LCD will display theaddressofthemodemsoneachsideof the
breakprovidingquicktroublefree identification.Intheeventofafault,cus-
tomer data will automatically be transferred to the secondary ring.
SpectraSmartTM PC,awindowsbasedGUIdriven network management
system can be connected to the Master Primary and Master secondary
modemsviaanRS-232orRS-485cable.WhenaPCisused,theGUIwill
displaytheentireNetworkandachangeofcoloratthetroublelocation.The
SpectraSmartTM softwareworksinconjunctionwiththeLCDdisplaylocated
ontheindividualmodems. When operating normallythe PrimaryMaster
modemmonitorsquantityandnumericalsequenceofslavemodemsonthe
ringandeachmodemstoresthelastfivealarms,whichcanbedisplayedon
thelocalLCDdisplay.The2300Mfamilycombinessophisticatedself-heal-
ingringtopologyandcomputerbasedlocalandremotediagnosticstopro-
vide your network with round the clock monitoring. The self-healing ring
immediatelydetectsfaultsandreroutescommunicationstokeepyournet-
workoperationalwhilethebuiltindiagnosticsreducesthetimerequiredby
technicianstoanalyze,locateandrepairthefault.
CONFIGURATIONS:
Themodemscanbeinstalledasastringorcounterrotatingfaulttolerant
rings.TheswitchselectablefeatureallowseachmodemtobesetasaMas-
terPrimary,MasterSecondaryoraSlave.TheMasterPrimaryandMaster
Secondary modems are connected to the PC by an RS-232 or RS-485
cableandprovideredundancyifMasterPrimaryortheopticalringisbro-
ken.
APPLICATIONS:
DataMultidropSelf-Healing
OpticalRingModem
SERIES2300M
CardAccessControl
SecurityTelemetrySystems
SCADA System
ComputerNetworks
ProcessControlSystems
ITS
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
DATA
DATA
DATA
DATA
DATA
DATA
DATA
DATA

SPECIFICATIONS:
Quality
MTBF. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . >260,000 hours @ Ground Fix 35oC per MIL217F
Connectors
Optical . . . . . . . . . . . . . . . . .
Power . . . . . . . . . . . . . . . . . .
I/O Data. . . . . . . . . . . . . . . . .
(4) STTM, FC, SC
Dual 2 Pin Terminal Blocks
DB25 Female
* Measured @ 1Km (multimode), 10 Km (singlemode)
** Add 30mm to include mounting flanges
MeridianTechnologies Inc.
700 Elmont Road. •Elmont, NY 11003 • 516. 285. 1000 • FAX [phone] • E-mail [email protected]
Visit our web side: www.meridian-tech.com or www.meridian-tech.tv
OPTICAL:
Power
Operating. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
Inputs. . . . . . . . . . . . . . . . . . .
500mA@ 12 VDC
300 mA@ 24 VAC
(Alarmed)
Dual
* Distance is limited to fiber loss and splices
** Higher output lasers available
Fiber Type/Size
(um)
Multimode* (SLED)
62.5/125
62.5/125
Singlemode(Laser)
9/125
9/125
Optical Output
(dBm)
-15
-16
-3**
-3**
RecieverSensitivity
(dBm)
-30
-30
-33
-33
Optical Budget
(dB)
15
14
30
30
Wavelength
(nm)
850
1300
1310
1550
Optical
Connector
ST,SC
ST,SC
ST,FC
ST,FC
OpticalDynamic
Range (dB)
30
30
30
30
Data
Formats. . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
Rate. . . . . . . . . . . . . . . . . . . . . . .
Bit Error Rate. . . . . . . . . . . . . . .
PWD (Pulse Width Distortion)
.
RS-232D, RS-422A,
RS-485 2w/4w, TTL,
SingleHandshake - RS-232
(Full HandshakingAvailable)
DC to 125 Kb/s (Async.)
10-9 *
<10% @ max. Data Rate Physical
Dimensions:
PX-2300M** . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . 152 mm (6”)L, 47 mm (1.8”)W 97 mm (3.8”)H
Enviromental
Operating Temperature. . . . .
Storage Temperature. . . . . . .
Relative Humidity. . . . . . . . .
-40oC to +74oC
-55oC to +85oC
0 to 95% Non-condensing
Indicators & LED
LCD Display. . . . . . . . . . . . .
LED Display (12). . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
2x16 Character Display
Alarm, Power A, Power B,
Master, Link A, Link B,
DiagnosticA, Diagnostic B,
Data TX, Data RX,
Handshake TX, Handshake RX

Data Multidrop String, Self-Healing
Optical Ring Modem, Rack Mount
SERIES 2300R
DATA
DATA
DATA
DATA
DATA
DATA
DATA
DATA
Network Diagnostics - Local and Remote Access
Surface Mount Technology (SMT) for High Reliability
and Repeatability
Fault Tolerant Self-Healing Ring or Linear Bus
Topology
Multiple-Master Capability
Asynchronous Data Rates up to 125 Kbps NRZ
Uses Digital FPGA Technology
Data Protocol Independent
RS-232D, RS-422, RS-485 (2 and 4 wire) and TTL
True Tri-State Sensing (no time outs needed)
Single Handshake – RS-232D (RTS & CTS)
or 2 Channel 125 Kbps Data Multiplexer
Data Re-clocked & Regenerated at each Modem
99 Node Capability
Individually Addressable Modems
Anti-streaming (on/off or variable time)
Local and Remote Loop Back Test
Local Dry ContactAlarm (N.O.)
Hot Swappable Input Power
Fully Compatible with SpectraSmart™ PC Based
Network Management
Built In BER Tester w/GUI
ESD Input Protection
Exceeds NEMA TS-1/TS-2 and Caltrans
Specifications
FEATURES: DESCRIPTION:
CONFIGURATIONS:
MARKETS:
ITS
Card Access Control
Security Telemetry Systems
SCADA System
The 2300R is a state-of-the-art, rack mount, multi-drop data mo-
dem designed to provide the user with trouble-free data transmis-
sion in both self-healing ring and Multidrop string configurations.
This 2-slot card modem has self-diagnostic capabilities that can
be monitored on a computer via the front-panel mounted RS-232
or USB ports. A front panel mounted RS-485 port is provided for
interconnecting the network diagnostics on two or more master
modems. The PC based Network Management system incorpo-
rates real time system diagnostics for monitoring various net-
work and modem parameters including, but not limited to: Optical
connectivity, Optical budgets, Power supply voltages, Individual
modem operating parameters, alarms & alarm history and network
BER. A GUI network representation monitors the fiber connectiv-
ity for other modems that are on the ring / string network. If a fiber
is broken an alarm activates, giving the user a visual representa-
tion of a broken fiber and its location in the network. Both primary
and redundant fiber rings are simultaneously monitored by the
network diagnostics. The 2300R product family combines so-
phisticated self-healing ring topology and computer based diag-
nostics to provide your network with round the clock monitoring.
The self-healing ring automatically detects faults and reroutes
communicationson the ringto keep yournetworkoperational while
the built in diagnostics reduces the time required by technicians to
analyze, locate and repair the fault.
The modems can be installed in a string or counter-rotating,
fault-tolerant ring network. The switch selectable feature allows
each modem to be set as a Master (primary or secondary) or
Slave. The Master modems are connected to the PC via the
RS-232 or USB ports. This modem interfaces with both additional
PX-2300R modems as well as Meridian’s PX-2300M, surface-
mount Multidrop modem. The 2300R can be installed in all of
Meridian’s card chassis, desk chassis and 19” racking frames.
These systems can be made a standalone system by using the
SR-1000/S, 2 slot desk / wall mount chassis (87VAC-264VAC)
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

SPECIFICATIONS:
MeridianTechnologies Inc.
700 Elmont Road. •Elmont, NY 11003 • 516. 285. 1000 • FAX [phone] • E-mail [email protected]
Visit our web side: www.meridian-tech.com or www.meridian-tech.tv
OPTICAL:
ver 08/03
Fiber Type/Size
(um)
Multimode (SLED)
62.5/125
Singlemode (Laser)
9/125
Optical Output
(dBm)
-13
-3
RecieverSensitivity
(dBm)
-30
-33
Optical Budget
(dB)
17
30
Wavelength
(nm)
1300
1310
Optical
Connector
ST
ST,FC
Optical Dynamic
Range (dB)
30
30
Quality
MTBF. . . . . . . . . . . . . . . . . . >260,000 hours @ Ground Fix
35oC per MIL217F
Connectors
Optical . . . . . . . . . . . . . . . . . .
Power . . . . . . . . . . . . . . . . . . .
I/O Data . . . . . . . . . . . . . . . . .
(4) STTM, FC, SC
Dual 2 Pin Terminal Blocks
DB25 Female
Power **
Data
Formats . . . . . . . . . . . . . . . . . .
Rate . . . . . . . . . . . . . . . . . . . . .
Bit Error Rate. . . . . . . . . . . . . .
PWD (Pulse Width Distortion).
Data Re-transmit Time Delay . .
RS-232D, RS-422A,
RS-485 2w/4w, TTL,
Single Handshake - RS-232
DC to 125 Kb/s (Async.)
10-9*
<10% @ max. Data Rate
< 5 ms Physical
Dimensions:
PX-2300R . . . . . . . . . . . . . .
Weight:
Card . . . . . . . . . . . . . . . . . .
No. of Slots . . . . . . . . . . . . .
160 mm (6.3”)L, 100 mm (4”)W
44 mm (1.7”)H
Enviromental
Operating Temperature. . . . .
Storage Temperature. . . . . . .
Relative Humidity. . . . . . . . .
-40oC to +74oC
-55oC to +85oC
0 to 95% Non-condensing
Indicators & LED
LED Display (11). . . . . . . . Alarm, Power , Master,
Link A, Link B,
DiagnosticA, Diagnostic B,
Data TX (1), Data RX (2),
Data TX (2), Data RX (2)
Model Numbers:
PX-2300R-0 MM, 1300 nm, ST Connectors, 2 Fibers
PX-2300R-2/ST SM, 1310nm, ST Connectors, 2 Fibers
PX-2300R-2 SM, 1310nm, FC Connectors, 2 Fibers
PX-2300iR-0 MM, 1300nm, ST Connector, 1 Fiber
PX-2300iR-2/ST SM, 1310nm, ST Connector, 1 Fiber
PX-2300iR-2 SM, 1310nm, FC Connector, 1 Fiber
Card. . . . . . . . . . . . . . . . . . . . . 8 Watts
450 gms (16 Oz)
2
* Measured @ 1Km (multimode), 10 Km (singlemode)
** Add 30mm to include mounting flanges

PX-2300
SELF-HEALING RING & MULTIDROP FIBER OPTIC MODEM
User’s Manual

11/11/2006 2 Rev 2.0
TABLE OF CONTENTS
1.0 INTRODUCTION .............................................................................................................................................4
2.0 NETWORK CONFIGURATIONS ...................................................................................................................5
2.1 Self-healing ring ................................................................................................................................................9
2.2 Self-healing ring with Dual Master ...................................................................................................................9
3.0 DESCRIPTION OF THE EXTERNAL CONTROL.......................................................................................10
3.1 PX-2300M – Surface Mount Unit ...................................................................................................................10
3.2 Rotary switches................................................................................................................................................13
3.3 LEDs status.....................................................................................................................................................14
3.4 Rear connectors ..............................................................................................................................................15
4.0 INTERNAL COMPONENT CONTROLS....................................................................................................16
4.1 Jumpers 1 – 12.................................................................................................................................................16
4.2 Jumpers 13 - 24 (Antistreaming values) ..........................................................................................................17
4.3 LCD contrast potentiometer (PX-2300M only) ...............................................................................................18
5.0 INSTALLATION ............................................................................................................................................19
5.1 Master/Slave configuration..............................................................................................................................19
5.2 Modem addresses ............................................................................................................................................19
5.3 Connection to the diagnostic computer............................................................................................................20
5.4 Power supply ...................................................................................................................................................20
6.0 SYSTEM TESTING........................................................................................................................................20
6.1 Loopback testing..............................................................................................................................................21
6.2 Onboard SpectraSmart Network Local Diagnostics ........................................................................................22
7.0 PX-2300R Rack Mount Modem ......................................................................................................................29
7.1 PX-2300R Jumper Setting: ..............................................................................................................................35
7.2 USB Port Configuration ..................................................................................................................................35
8.0 SpectraSmart PC Network Management System.............................................................................................37
9.0 TROUBLESHOOTING ..................................................................................................................................41
10.0 SPECIFICATIONS..........................................................................................................................................42
11.0 Warranty ..........................................................................................................................................................43
12.0 APPENDIX - TABLES, FIGURES.................................................................................................................45

11/11/2006 3 Rev 2.0
1.0 INTRODUCTION
The Meridian Technologies’ series PX-2300 Multidrop Fiber Optic Data Modems are designed to accept
RS-232, RS-422, and 2 & 4-wire RS-485 signals and optically transmit them in simple string and ring
networks as well as in dual, counter-rotating, self-healing rings with dual masters for increased fault
protection and redundancy. Up to 99 modems can be connected in a single network to provide almost
unlimited connectivity. Applications include traffic signal control, industrial process controls, and SCADA
networks.
The PX-2300M is the stand-alone or surface mount model while the PX-2300R is the rack mount unit that
occupies two slots in a standard Meridian chassis.
The Meridian PX-2300 series modems are equipped with built-in self-diagnostics that monitor and report
the status of each of the modems on the network and the fiber itself. This feature is unique to the PX-
2300 modems and provides a significant advantage over competitive products. On the PX-2300M
(surface mount modem) local access to the diagnostic information is via a large, easy to read, LCD
display on the top of each modem.
The PX-2300 is also compatible with Meridian’s SpectraSmart™PC Diagnostic network management
system. SpectraSmart continuously monitors “real-time“ data for Meridian equipment to determine the
integrity and operational status of diagnostic-equipped fiber optic modems, optical interfaces, fiber, etc.
(See section 6.2 for more details on SpectraSmart). Remote access to SpectraSmart diagnostics is
available via an RS-232 interface to a computer. Access to the diagnostic information on the PX-2300R
is available via the USB or RS-232 interface to Meridian’s SpectraSmart software that resides on a
standard computer.
The modems regenerate fiber optic signals and provide greater system loss budgets (and increased
distance). Wide temperature operating range and isolated diagnostic RS-485 driver allow to use
modems in harsh environments where ground loops and EMI/RFI interference may occur
2.0 NETWORK CONFIGURATIONS
The PX-2300 modem is designed to connect central computers and controllers with multiple remote
workstation / terminal units through fiber optic cables. The Master modem receives asynchronous data
from the central computer or controller and transmits it over fiber optic cables to Slave modems at
distances up to 30 miles (50 km) between the modems – using singlemode fiber. The PX-2300 modem
supports RS-232 data with handshake, RS-485 data (2-wire or 4-wire) or RS-422 full duplex data at
communication speeds up to 115 Kbps.
PX –2300 modems can be configured to operate in the following ways:
Multi-drop (Bus or String): Typical configuration for multi-modem applications including traffic
controllers, railways & subways, and oil or gas pipelines where linear arrays of data communication
nodes are required. Data from host (Master) is transmitted to all remote modems or slaves. The remote
equipment addressed at the remote location will accept the data, perform the necessary function and
transmit its data back to the master via the other remote modems between itself and the master.
Figure 2-1 below illustrates a typical string or bus configuration using one master and a number of
remote or slave modems at various add/drop locations. Because of the dual optical paths, it is not
necessary that the master be located at one end of the string or bus. Utilizing both clockwise and
counter-clockwise optical paths allows slave modems to be placed on either side of the master providing
added logistical flexibility.

11/11/2006 4 Rev 2.0
Self-healing ring: This configuration is the most complex one and highlights the various features of
the PX-2300 modems. In such a network configuration, data is transmitted down both rings (one
clockwise and the other counter-clockwise). In addition to the user’s data, PX-2300 network and
diagnostic commands are transmitted on the fibers. These signals are used to monitor the integrity of the
fiber network and perform the necessary diagnostics and fail-safe network reconfiguration to ensure the
fail-safe operation of the PX-2300 network. The PX-2300 also supports dual master modems for even
greater protection and redundancy.
Figure 2-2 below illustrates how the PX-2300 modems can be configured in a SHR network. The head-
end computer or controller is connected to the modem configured as the master modem. Data from this
master is then transmitted in both directions around the ring and dropped off at each of the remote or
slave locations.
Since the customer’s data is asynchronous, and not guaranteed to be present at all times, Meridian uses
its proprietary network control/diagnostic signals to continuously monitor the network’s integrity in both
directions and provide network performance and fault location information back to the system controller.
The default transmit/receive direction for the data network’s data is in the clockwise direction (‘A’ ring). In
the event of a fiber break or modem failure, the modems automatically switch to the back up or counter-
clockwise rotating ‘B’ ring to detect the network’s data. Other SHR networks provide a simple local
contact closure to indicate or alarm that the network has failed or gone into the self-healing mode of
operation. Meridian’s PX2300 modems provide this same local contact closure for compatibility but also,
through the SpectraSmart network management system, provide both local and remote indication and
identification of the fault – a major technology breakthrough and significant cost advantage to network
management.
Figure 2-1
Multidro
p
Strin
g
Confi
g
uration

11/11/2006 5 Rev 2.0
As shown above, the Meridian PX2300 series digital fiber optic data modems can be easily configured
into string or ring networks. Key factors in their networking and expansion capabilities include the ability
to drop, add or repeat channels at any modem without signal degradation. Commonly referred to as a “
counter – rotating “ ring, the self-healing ring (SHR) architecture allows easy network expansion up to 99
slave modems, add or drop channels at any modem on the network and provide signal path redundancy
Figure 2-2
Typical Self-Healing Ring (SHR)
Configuration