Optelecom-nkf 9252DT User manual

9000 Series
Installation and Operation Manual
Model 9252DT
Model 9252DR
Digital Eight Channel Video/Five Channel
Data Multiplexer/Transmitter and
Receiver/Demultiplexer Cards
For the high quality transmission of eight channels of
composite baseband video and five channels of data in
one direction and four channels of data in the opposite
direction all on one optical fiber
UM50241, Manual 9252DT/DR, ECO23323, Rev. F

Table of Contents
Section Page
Safety Instructions ii
Fiber Information iv
Functional Description 1
9252DT Indicator, Connector and Dipswitch Locations and Function 2
9252DR Indicator, Connector and Dipswitch Locations and Function 4
9252DT/9252DR Configuration and Connection Guide 6
Built-In Data Connection 7
Operation of the 9252DT/9252DR 11
Operation of the 9252D with Network Management System Software 12
Specifications for the 9252DT and 9252DR 13
UM50241, Manual 9252DT/DR, ECO23323, Rev. F

ii
Safety Instructions RM-1
The optical devices used in this equipment are Hazard Level 1M. As required by IEC60825-1, the installer is responsible for insuring that the label
depicted below is present in the restricted locations where this equipment is installed.
This assembly contains parts sensitive to damage by electrostatic discharge (ESD). Use ESD precautionary procedures when
touching, removing, or inserting parts or assemblies.
The chassis into which this unit is installed must be housed in a properly rated NEMA enclosure.
When this unit is operated in extremely elevated temperature conditions, it is possible for internal and external metal surfaces to
become extremely hot. Care should be taken to insure this unit is installed in a restricted area where only properly trained service
personnel have access to the unit.
This product contains Class 1M lasers or LEDs.
• Class 1M laser product according to IEC60825-1:1993+A1+A2
•CAUTION: Use of controls or adjustments or procedures other than those specified herein may result in hazardous
radiation exposure.
• Precautions should be taken to prevent exposure to optical radiation when the unit is removed from its enclosure or when
the fiber is disconnected from the unit.
• Laser radiation may be present on a fiber connection to this unit even when the power has been removed from the unit.
• This unit is intended for installation in locations where only trained service personnel have access to the fiber connections.
• The locations of all optical connections are listed in the Connection Locations and Function section of this manual.
• Optical outputs and wavelengths are listed in the Specifications section of this manual.
The safety information contained in this section, and on other pages of this manual, must be observed whenever this unit is operated,
serviced, or repaired. Failure to comply with any precaution, warning, or instruction noted in the manual is in violation of the standards
of design, manufacture, and intended use of the unit. Optelecom-NKF assumes no liability for the customer’s failure to comply with any
of these safety requirements.
Hazard Level 1M The border shall be black and the
background shall be yellow.
LASER RADIATION
DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS (MAGNIFIERS).
CLASS 1M LASER PRODUCT
CAUTION:
DISCONNECTED OPTICAL CONNECTORS MAY EMIT OPTICAL ENERGY.
DO NOT VIEW BEAM WITH OPTICAL INSTRUMENTS (MAGNIFIERS).

iii
Instrucciones de seguridad RM-1
Los dispositivos ópticos usados en este equipo son de Nivel de Riesgo 1M. Según lo exige la norma IEC60825-1, el instalador es responsable de
asegurar que la etiqueta descrita a continuación esté presente en las ubicaciones restringidas donde se instale este equipo.
Este ensamblaje contiene piezas sensibles al daño por descargas electrostáticas (ESD, por sus siglas en inglés). Use
procedimientos para prevenir las descargas electrostáticas al tocar, desmontar o insertar piezas o ensamblajes.
El chasis en el cual está instalada esta unidad debe estar dentro de un alojamiento debidamente calificado por NEMA.
Cuando se opera esta unidad en condiciones de temperatura sumamente elevada, es posible que las superficies internas y
externas de metal se pongan extremadamente calientes. Debe tenerse cuidado para asegurar que esta unidad se instale en un
área restringida donde sólo tenga acceso a la unidad el personal de servicio debidamente capacitado.
Este producto contiene rayos láser o diodos emisores de luz Clase 1M.
• Producto láser Clase 1M conforme a la norma IEC60825-1:1993+A1+A2
•PRECAUCIÓN: El uso de los controles o ajustes o procedimientos aparte de lo especificado aquí puede ocasionar
exposición peligrosa a la radiación.
• Deben tomarse precauciones para evitar la exposición a la radiación óptica cuando se saque la unidad de su alojamiento, o
cuando se desconecte la fibra de la unidad.
• Puede haber radiación láser en una conexión de fibra a esta unidad aun cuando se haya eliminado la corriente de la unidad.
• Esta unidad está destinada a instalarse en ubicaciones donde sólo el personal de servicio competente tenga acceso a las
conexiones de fibra.
• Las ubicaciones de todas las conexiones ópticas se enumeran en la sección Ubicaciones de las conexiones y funciones de
este manual.
• Las salidas ópticas y longitudes de onda aparecen en la sección Especificaciones de este manual.
Debe observarse la información de seguridad contenida en esta sección, y en otras páginas de este manual siemptre que se opere, dé
servicio o repare esta unidad. Si no se cumple con alguna precaución, advertencia o instrucción indicada en este manual se infringen los
estándares de diseño, fabricación y el uso destinado a la unidad. Optelecom-NKF no asume ninguna responsabilidad si el cliente no
cumple con alguno de estos reequisitos de seguridad.
RADIACIÓN LÁSER
NO VER DIRECTAMENTE CON INSTRUMENTOS ÓPTICOS (DE AUMENTO)
PRODUCTO LÁSER CLASE 1M
PRECAUCIÓN:
LOS CONECTORES ÓPTICOS DESCONECTADOS PUEDEN EMITIR ENERGÍA ÓPTICA
NO VER EL HAZ CON INSTRUMENTOS ÓPTICOS (DE AUMENTO)
Nivel de Riesgo 1M El borde debe ser negro y
el fondo debe ser amarillo.

iv
Sicherheitsanleitungen RM-1
Die optischen Vorrichtungen in diesem Gerät haben Gefahrenstufe 1M. Wie vorgeschrieben durch IEC60825-1 ist der Installateur dafür verantwortlich,
sicherzustellen, dass die unten abgebildeten Schilder an den Orten mit eingeschränktem Zugang, an denen dieses Gerät aufgestellt ist, vorhanden sind.
Diese Baugruppe enthält Teile, die durch elektrostatische Entladungen (ESD) beschädigt werden können. Vorsichtsmaßnahmen
zum Schutz vor elektrostatischer Entladung treffen, wenn Teile oder Baugruppen berührt, ausgebaut oder eingefügt werden.
Das Gestell, in dem diese Einheit eingebaut ist, muss in einem entsprechend klassifizierten NEMA-Schutzgehäuse untergebracht
sein.
Wenn diese Einheit bei besonders hohen Temperaturen betrieben wird, können interne und externe Metallflächen extrem heiß
werden. Es muss darauf geachtet werden, dass diese Einheit in einem Bereich mit eingeschränktem Zugang aufgestellt wird,
damit nur geschultes Wartungspersonal Zugang zur Einheit hat.
Dieses Produkt enthält Laser oder LEDs der Klasse 1M.
• Laserprodukt der Klasse 1M gemäß IEC60825-1:1993+A1+A2
•VORSICHT: Wenn die Bedienungselemente anders als hier beschrieben bzw. andere Einstellungen verwendet werden,
kann es zu schädlicher Strahlenaussetzung kommen.
• Es müssen Vorsichtsmaßnahmen getroffen werden, um Aussetzung an optischer Strahlung zu vermeiden, wenn die Einheit
aus dem Gehäuse genommen oder die Faseroptik von der Einheit getrennt wird.
• In einer Faseroptik-Verbindung dieser Einheit kann auch dann Laserstrahlung vorhanden sein, wenn die Stromversorgung
zur Einheit abgeschaltet wurde.
• Diese Einheit ist zum Einbau an Orten vorgesehen, an denen nur geschultes Personal Zugang zu den Faseroptik-
Verbindungen hat.
• Die Lage aller optischen Verbindungen ist im Abschnitt über die Lage von Anschlüssen und Funktionsweise dieses
Handbuchs zu finden.
• Optische Ausgänge und Wellenlängen sind im Abschnitt mit den technischen Daten dieses Handbuchs zu finden.
Die in diesem abschnitt und auf anderen seiten dieses handbuchs enthaltenen sicherheitsinformationen müssen befolgt werden, wenn diese einheit betrieben,
gewartet oder repariert wird. Falls vorsichtsmassnahmen, warnungen oder anweisungen in diesem handbuch nicht befolgt werden, verstösst dies gegen die
konstruktions, und herstellungsstandards und erfolgt im gegensatz zum vorgesehenen verwendungszweck dieser einheit. Optelecom-NKF übernimmt keine
haftung für das verabsäumnis des kunden, diese sicherheitsanforderungen einzuhalten.
LASER-STRAHLUNG
NICHT DIREKT MIT OPTISCHEN INSTRUMENTEN (LUPEN) ANSEHEN
LASER-PRODUKT DER KLASSE 1M
VORSICHT:
ABGEKLEMMTE OPTISCHE STECKVERBINDER KÖNNEN OPTISCHE ENERGIE FREI SETZEN
NICHT MIT OPTISCHEN INSTRUMENTEN (LUPEN) IN DEN STRAHL BLICKEN.
Gefahrenstufe 1M Schwarzer Rand und
gelber Hintergrund.

v
Consignes de sécurité RM-1
Les appareils optiques utilisés dans cet équipement correspondent à un niveau de danger 1M. Comme exigé par la norme IEC60825-1, il incombe à
l’installateur de s’assurer que l’étiquette ci-dessous est présente aux endroits d’accès limité où cet équipement est installé.
Cet ensemble contient des pièces sensibles aux décharges électrostatiques (ESD). Prendre les précautions relatives aux ESD avant
de toucher, retirer ou insérer des pièces ou des ensembles.
Le châssis dans lequel est installé cet appareil doit être placé dans une enceinte NEMA conforme aux spécifications nominales.
Lorsque cet appareil fonctionne à une température ambiante extrêmement élevée, il est possible que les surfaces métalliques
internes et externes deviennent extrêmement chaudes. S’assurer que cet appareil est installé dans une zone dont l’accès est
limité à un personnel de maintenance correctement formé.
Ce produit contient des lasers ou diodes électroluminescentes de classe 1M.
• Produit laser de classe 1M conformément à IEC60825-1:1993+A1+A2
•ATTENTION: L’utilisation de commandes ou réglages, ou de procédures différentes de celles indiquées ici risque de
provoquer une exposition dangereuse au rayonnement.
• Prendre des précautions pour empêcher une exposition au rayonnement optique lorsque l’appareil est retiré de son boîtier ou
lorsque le câble optique fibre est débranché de l’appareil.
• Un rayonnement laser pourra être présent dans un câble optique branché sur cet appareil, même une fois l’alimentation coupée.
• Cet appareil est prévu pour une installation à des endroits où seul un personnel de maintenance formé a accès aux câbles optiques.
• Les points de branchement de tous les câbles optiques sont indiqués à la section Points de branchement et fonction de ce manuel.
• Les sorties et longueurs d’onde optiques figurent à la section Caractéristiques techniques de ce manuel.
Les consignes de securite contenues dans cette section et dans le reste de ce manuel doivent etre respectees a chaque fois que cet appareil
est utilise ou fait l’objet d’une maintenance ou d’une reparation. Le non-respect d’une precaution, d’un avertissement ou d’une instruction
figurant dans ce manuel est une violation des normes de conception, fabrication et indication d’usage de l’appareil. Optelecom-NKF n’est
pas responsable du non-respect de ces consignes de securite par le client.
RAYONNEMENT LASER
NE PAS REGARDER DIRECTEMENT AVEC DES INSTRUMENTS OPTIQUES (LOUPES)
PRODUIT LASER DE CLASSE 1M
ATTENTION:
LES CONNECTEURS OPTIQUES DEBRANCHES PEUVENT EMETTRE UNE ENERGIE OPTIQUE.
NE PAS REGARDER LE FAISCEAU AVEC DES INSTRUMENTS OPTIQUES (LOUPES)
Niveau de danger 1M La bordure doit être noire et
le fond jaune.

vi
Fiber Information
This unit was manufactured with attention to fiber cleanliness by Optelecom-NKF. Beyond the optical safety
information contained in this manual, the following guidelines should be observed when working with
optical fibers.
The biggest problem is dirt!
It takes very little contamination to cause problems with optical fiber connections; cleanliness is extremely
important to proper operation of optical equipment.
1. Protect optical connectors by leaving the connector covers in place on unused fiber connections and on
the fiber tips themselves.
2. Personnel who remove and replace fibers should be equipped with a fiber cleaning kit. These are
inexpensive and can be obtained from any fiber equipment supply house. If you choose to, you can use
propanol and lint-free tissue to clean fibers.
a. a. Do not use isopropanol alcohol (typically called rubbing alcohol) mixed with water. This can cause
additional spots. (Caution: Pure isopropanol is very flammable!)
b. Use lintless tissues to clean fibers.
c. Clean the fiber with a folded tissue moistened with the propanol, pulling the connector tip across the
tissue, then turn the connector 90 degrees and repeating in a different spot on the tissue.
d. Don’t pull the fiber across and then push it back. This will put the dirt that was cleaned off back on
again.
e. Repeat the process on a dry, folded tissue.
3. When removing fibers, always clean them when replacing them no matter how long you had them off.
4. When connecting fibers, pay attention to the bend radius of the fibers. A general rule is to have a 3-inch
(8 cm) bend radius. A bend radius less than 3 inches is an attenuator and can cause optical signal loss.
5. Installers of fiber equipment should be equipped with the equipment manuals and an optical power meter
to measure the optical inputs and outputs in a system. An optical power meter is an inexpensive tool that
can save much time and effort in getting optical communications links up and running. Properly equipped
and trained installers can quickly determine the source of any problems that occur.

Functional Description
The Model 9252DT Multiplexer/Transmitter accepts eight composite video baseband signals via eight video
BNC ports. It then performs a 10-bit linear analog-to-digital conversion on each of the eight baseband video
signals, multiplexes the resulting PCM data with five data channels input from the built-in data ports, and
transmits the data optically via an optical fiber to the 9252DR. The optical return path contains composite data
transmitted by the 9252DR via the same fiber. The optical signal is received and demultiplexed into eight
separate data channels and output via the built-in data ports.
The Model 9252DR Receiver accepts eight data input signals via the built-in data ports, multiplexes them into
a composite data stream, and transmits it optically via the optical fiber to the 9252DT. The composite digital
video and multiplexed data stream transmitted from the 9252DT video multiplexer/transmitter unit is received
and demultiplexed by the 9252DR, which is responsible for routing the video data to digital-to-analog
converters for output via the eight video output BNC ports and demultiplexes the five built-in data channels
for output via the data ports.
The Models 9252DT and 9252DR are rack-mount, plug-in cards that occupy two card slots each in a Series
9000 card chassis. The units operate on 6VDC from the chassis power supply.
1

9252DT Indicator, Connector, and Dipswitch
Locations and Function
2
FIGURE 1
1. LED INDICATORS
a) SYNC: Green LED, illuminates when the local data demux is in sync with the incoming received
optical signal.
b) LOOP: Green LED, illuminates when the remote data demux is in sync with the received optical signal
transmitted by the local unit.
c) NOT LOOP: Yellow LED, illuminates when the remote data demux is not in sync with the received
optical signal transmitted by the local unit.
d) NOT SYNC: Red LED, illuminates when the local data demux is in not in sync with the incoming
received optical signal.
2. OPTICAL PORT
The optical fiber cable connector is connected to this port for transmission of the optical signal to the
9252DR receiver/demux. This port is an input/output on 9252D single fiber versions and an output on
9252D dual fiber versions.
3. VIDEO INPUT CONNECTORS (EIGHT)
Compatible with BNC connected coaxial cables, these connectors accept the eight video input signals.

4. DATA INPUT CONNECTORS (TWO):
a) The RJ45 “DATA” port accepts and outputs two data signals, one RS232 and one switch-selectable
RS422, RS485, or Manchester (biphase) signal.
b) The RJ12 “RS485” port accepts and outputs an RS485-compatible data signal.
5. HIGH SPEED AUX DATA PORTS (TWO)
Each of these RJ45 ports on the 9252DT interfaces directly with Model 9961-C or Model 9962-C Auxiliary
Data/Audio Mux/Demux Cards and other options, providing transport for their high-speed composite
input/output data signals. One port is an input only (SIMPLEX) and the second port is full duplex.
6. SECOND OPTICAL INTERFACE PORT
Only on dual fiber versions, this port receives the reverse optical input in CWDM system configurations.
7. DATA INTERFACE CONFIGURATION DIPSWITCH
This ten-position dipswitch allows the user to select the desired data interface compatibility of the
configurable input on the “DATA” port.
3

9252DR Indicator, Connector, and Dipswitch
Locations and Function
4
FIGURE 2
1. LED INDICATORS
a) SYNC: Green LED, illuminates when the local data demux is in sync with the incoming received
optical signal.
b) LOOP: Green LED, illuminates when the remote data demux is in sync with the received optical signal
transmitted by the local unit.
c) CD: When illuminated, this red LED indicates that the receiver is not receiving sufficient optical power
to operate.
d) ERR: When illuminated, this yellow LED indicates that there are errors being detected in the received
optical data stream.
2. OPTICAL PORT
The optical fiber cable connector is connected to this port for transmission of the optical signal to the
9252DT mux/transmitter. This port is an input/output on 9252D single fiber versions and an output on
9252D dual fiber versions.
3. VIDEO OUTPUT CONNECTORS (EIGHT)
Compatible with BNC connected coaxial cables, these connectors output the eight video input signals.

4. DATA INPUT CONNECTORS (TWO):
a) The RJ45 “DATA” port accepts and outputs two data signals, one RS232 and one switch-selectable
RS422, RS485, or Manchester (biphase) signal.
b) The RJ12 “RS485” port accepts and outputs an RS485-compatible data signal.
5. HIGH SPEED AUX DATA PORTS (TWO)
Each of these RJ45 ports on the 9252DT interfaces directly with Model 9961-C or Model 9962-C Auxiliary
Data/Audio Mux/Demux Cards and other options, providing transport for their high-speed composite
input/output data signals. One port is an input only (SIMPLEX) and the second port is full duplex.
6. OPTICAL INTERFACE PORT
Only on dual fiber versions, this port outputs the reverse data optical signal.
7. DATA INTERFACE CONFIGURATION DIPSWITCH
This ten-position dipswitch allows the user to select the desired data interface compatibility of the
configurable input on the “DATA” port.
5

Video Camera
Video Camera
Eight Video
Inputs
Duplex RS485 2-Wire
Duplex RS232
Duplex RS422 or RS232 or
RS485 2-Wire or 4-Wire
Duplex High-Speed
Synchronous Data Port
Simplex High-Speed
Synchronous Data Port
Video
Monitor
Video
Monitor
Eight Video
Outputs
Fiber Connection
9252DT 9252DR
Duplex RS485 2-Wire
Duplex RS232
Duplex RS422 or RS232 or
RS485 2-Wire or 4-Wire
Duplex High-Speed
Synchronous Data Port
Simplex High-Speed
Synchronous Data Port
9252DT/9252DR Configuration and Connection Guide
6
FIGURE 3
To install, connect the video inputs to the 9252DT, connect the video monitors or other video receptors to
the 9252DR, and connect an appropriate optical fiber between the 9252DT and 9252DR optical ports.
Connect data signal sources or destinations, as required, to the “DATA” and “RS485” ports per the
following Built-In Data Connection section. If the Model 9961-C or 9962-C add-on option interface module
mux/demux host units are to be used, plug the CAT-5 composite data cable from the unit(s) into the HS
AUX data port(s) as required.

Built-In Data Connection
DATA AND RS485 PORTS
There are four data ports on the 9252DT and 9252DR. Two of them, designated for general data comm use,
are the
“ DATA” port and the “RS485” port.
The
“ DATA” port supports two data channels, one a full-time RS232 channel and the other a configurable data
channel that is dipswitch programmable for RS422, RS485 2- or 4-wire, or Manchester operation. Both channels
are implemented via the RJ45 connector marked
“ data”. The RS232 channel is a dedicated channel. There are no
dipswitch settings associated with or required for operation of this channel. The configurable channel must be
programmed by setting dipswitch S1 on the board for proper operation. Refer to Table 1 for switch settings and
to Table 2 and Figures 4, 5, 6, and 7 for connection and pinout information. Refer to the section on termination
to determine when the terminations should be enabled (ON) and when it should be disabled (OFF).
7
TABLE 1 — SWITCH SETTINGS
Dipswitch
Port Data Type Termination 12345678910
DATA Port RS422 Terminated On On On On On Off Off Off
(RJ45)
Unterminated Off On On Off Off Off Off Off
RS485 Terminated On On On On On Off On Off
4-Wire
Unterminated Off On On Off Off Off On Off
RS485 Terminated On On On On On Off On On
2-Wire
Unterminated Off On On Off Off Off On On
Manchester On Off Off On On On Off Off
RS485 Port RS485 Terminated On On
(RJ12) 2-Wire
Unterminated Off Off

8
TABLE 2 — CONNECTIONS AND PINOUTS, DATA PORT
Configurable DATA Port (RJ45) Pin Numbers
Connection 1 23456 7 8
RS232 Common In Out Common
RS422, RS485 4- Out In In Out
Wire, Manchester (+) (+) (–) (–)
RS485 2-Wire In/Out In/Out
(+) (–)
2
7
1 or 8
TD
COM
9252D (T or R) DataPort (RJ45)
Duplex RS232 Connection
(Arrows Indicate Signal Direction)
RD
FIGURE 4
4
5
1 or 8
TD (+)
Shield
9252D (T or R) DataPort (RJ45) Duplex
RS422 and RS485 4-Wire Connection
TD (-)
RD (+)
RD (-)
3
6
(Arrows Indicate Signal Direction)
(Shields should only be connected
at one end, not both.)
FIGURE 5
4
5
1 or 8Shield
9252D (T or R) DataPort (RJ45)
Duplex RS485 2-Wire Connection
TX (+)
TX (-)
(Arrows Indicate Signal Direction)
(Shields should only be connected
at one end, not both.)
FIGURE 6
3
6
1 or 8Shield
9252D DataPort (RJ45)
Simplex RS422 or Manchester
2-Wire Connection
RX (+)
RX (-)
9252DT (Camera End)
4
5
1 or 8Shield
TX (+)
TX (-)
9252DR (Monitor End)
(Arrows Indicate Signal Direction)
(Shields should only be connected
at one end, not both.)
FIGURE 7

The “RS485” port supports a dedicated 2-wire RS485 channel. The only dipswitch setting required for this
port is the termination setup. Tables 1 (above) and 3 contain switch setting and pinout information.
Connection information is found in Figures 8 and 9. Refer to the next section on Termination Rules to
determine when the terminations should be enabled (ON) and when it should be disabled (OFF).
9
TABLE 3 — CONNECTIONS AND PINOUTS, RS485 PORT
RS485 Port (RJ12) Pin Numbers
Connection 1 23456
RS485 Common In/Out In/Out In/Out In/Out Common
(–) (+) (+) (–)
1 or 6 Shield
9252D (T or R) RS485 Port (RJ12)
Duplex RS485 2-Wire Connection
TX (+)
TX (-)
(Arrows Indicate Signal Direction)
(Shields should only be connected
at one end, not both.)
3 or 4
2 or 5
FIGURE 8
3 or 4
2 or 5
1 or 6 Shield
9252D RS485 Port (RJ12)
Simplex RS485 2-Wire
Connection
RX (+)
RX (-)
9252DT (Camera End)
Shield
TX (+)
TX (-)
9252DR (Monitor End)
(Arrows Indicate Signal Direction)
(Shields should only be connected
at one end, not both.)
3 or 4
2 or 5
1 or 6
FIGURE 9
RS485, RS422, AND MANCHESTERTERMINATION RULES
For RS422, RS485, and Manchester connections it is possible that multiple devices may be connected in
parallel. This is usually a transmitter and many receivers connected together or many transceivers in RS485.
When this occurs, this parallel bus must be terminated with the correct impedance. Use the following rules
to determine if the termination resistors should be enabled or disabled.
RS422 and RS485
On RS485 two-wire duplex, terminations should be enabled on both ends. On RS422 and simplex RS485, the
terminators should be enabled on the device at the end of the circuit farthest from the transmitting end.
Devices in the middle of the circuits should remain unterminated.
Manchester
If there are six or more devices, disable all the termination resistors. If there are fewer than six devices,
enable termination only on the device farthest from the transmitting end, leaving the input termination
disabled on the devices in between.

HS AUX DATA PORTS
The other two data ports are the HS AUX DATA ports. There are two HS AUX DATA ports on the 9252DT and
two HS AUX DATA ports on the 9252DR. One of these ports is simplex, the other is duplex. The simplex port
is capable of carrying asynchronous RS422 data at rates from DC to 1.5 Mbps (10X oversampled) in one
direction from the transmitter (9252DT) to the receiver (9252DR). The duplex port has the same capacity, but
in both directions.These ports can also carry synchronous data utilizing the 15 MHz Transmit Clock and
Receive Clock outputs provided.
Although these ports can be used for general purpose RS422 applications, they are specifically configured to
support the Model 9961-C Four Channel and 9962-C Eight Channel Auxiliary Data/Audio Mux/Demux Cards.
When mated with the SIMPLEX HS AUX DATA PORT on the host Model 9252D unit, a 9961-C/9962-C will
operate only in the 9252DT to 9252DR direction, supporting either four or eight Data/Audio Option Modules.
When mated with the DUPLEX HS AUX DATA PORT, a 9961-C/9962-C will operate in both directions. To install,
connect a straight through Category 5 jumper cable (provided with the 996X-C) from the 9961-C or 9962-C to
the appropriate HS AUX DATA PORT. This provides the separate mux/demux card access to the significant data
transmission capability of the 9252DT/DR to transport its data without using extra optical fibers.
10
D
A
T
A
PIN 1
PIN 8
PIN 6
PIN 1
RS485, Data, and
High-Speed Duplex and Simplex Ports
R
S
4
8
5
PIN 1
PIN 8
H
S
A
U
X
D
A
T
A
S
I
M
P
L
X
PIN 1
PIN 8
D
U
P
L
X
FIGURE 10

11
TABLE 6 — HIGH-SPEED DUPLEX AUX DATA PORT PINOUTS FOR THE 9252DT, 9292DR
Pin # Function
1 TX Data (+) – Input
2 TX Data (-) – Input
3 TX Clock (+) – Output
4 RX Data (+) – Output
5 RX Data (-) – Output
6 TX Clock (-) – Output
7 RX Clock (+) – Output
8 RX Clock (-) – Output
TABLE 4 — HIGH-SPEED SIMPLEX AUX
DATA PORT PINOUTS FOR THE 9252DT
Pin # Function
1 TX Data (+) – Input
2 TX Data (-) – Input
3 TX Clock (+) – Output
4 Not Used
5 Not Used
6 TX Clock (-) – Output
7 Not Used
8 Not Used
TABLE 5 — HIGH-SPEED SIMPLEX AUX
DATA PORT PINOUTS FOR THE 9252DR
Pin # Function
1 Not Used
2 Not Used
3 Not Used
4 RX Data (+) – Output
5 RX Data (-) – Output
6 Not Used
7 RX Clock (+) – Output
8 RX Clock (-) – Output
Operation of the 9252DT and 9252DR
Operation is straightforward. Connect per the directions in the Configuration and Connection Guide section on
page 6. There are no adjustments. Under normal operation, only the green “SYNC” and “LOOP” indicators on
each unit will be illuminated.

12
Operation of the 9252D with
the Network Management System
Operation of the 9252DT with the Network Management System consists of the following parameters:
1. Slot Number
2. Card Name (Model Number)
3. Serial Number
4. Time
5. Wavelength
6. Revision Number
7. Chronometer Value (Cumulative Hours of Operation)
8. Reset Cycles (Cumulative Number of Power Cycles)
9. Firmware Revision
10. Received Optical Power
11. Laser Drive Current
12. Temperature
13. Optical Output Power
14. Local Demux Sync
15. Remote Demux Sync
16. Laser Modulation Current
17. Video Input Present Per Channel
Operation of the 9252DR with the Network Management System consists of the following parameters:
1. Slot Number
2. Card Name (Model Number)
3. Serial Number
4. Time
5. Wavelength
6. Revision Number
7. Chronometer Value (Cumulative Hours of Operation)
8. Reset Cycles (Cumulative Number of Power Cycles)
9. Firmware Revision
10. Received Optical Power (except LHS versions)
11. Laser Drive Current
12. Temperature
13. Optical Output Power
14. Local Demux Sync
15. Remote Demux Sync
16. Video Output Present Per Channel
17. Add Bias Voltage (LHS versions only)
NMS users should set the Alarm Status and Alarm Limits for each parameter as required for the specific
application when the NMS software is operated for the first time.
When the 9252D card is installed into an existing system already utilizing NMS system software, an upgrade of the
software will be necessary to add the 9252D card to the software database in the NMS software. Consult the
factory for guidance on how to download the latest version of the software from the Optelecom FTP download site.