AFi MT-91P589C-SL User manual

Instruction Manual
MT-91P589C-SL
Video Transmitter With
Bi-directional
Multi-Protocol Data
Audio and Contact Closure
© Copyright 2011, American Fibertek, Inc. 1212TS

Table of Contents
Functional Description..............................................................................…3
Installation ................................................................................................... 3
Power Source.............................................................................................. 3
Power Connection ....................................................................................... 3
Fiber Connection ......................................................................................... 3
Video Input Connection ............................................................................... 4
Data Input / Output Connections ................................................................. 4
Typical System Data Connections............................................................... 5
Data Configuration....................................................................................... 5
RS485 Data Signals .................................................................................... 6
Offset Bias - RS485..................................................................................... 6
MT-91P589C-SL Status LED Indicators...................................................... 7
Warranty...................................................................................................... 9
Service Information...................................................................................... 9
2

3
INSTALLATION AND OPERATION INSTRUCTIONS
INTRODUCTION
Thank you for purchasing your American Fibertek MT-91P589C-SL singlemode video transmitter with
bi-directional multi-protocol data, bi-directional audio, and bi-directional contact closure. Please take a
few minutes to read these installation instructions in order to obtain the maximum performance from
this product.
FUNCTIONAL DESCRIPTION
The MT-91P589C-SL operates as half of a transmitter / receiver pair for the transmission of high
performance 10 bit digital NTSC, or PAL, RS170, or RS343 video signals. The MT-91P589C-SL also
supports bi-directional multi protocol data ((RS485 (2 or 4 wire), or RS422, or RS232 or Manchester
data)), bi-directional audio, and bi-directional contact closure.
The MT-91P589C-SL multiplexes data, video, audio, and contact closure signals into a high speed
serial data stream. This serial data stream modulates a laser at 1310 nm wavelength. The MT-
91P589C-SL also detects and demultiplexes a return optical serial data stream signal containing data,
audio, and contact closure channels at 1550 nm wavelength. The 91P589C-SL Series product is
designed to operate over an optical loss budget range of 0 to 21 dB. Refer to the data sheet for detailed
performance specifications.
The RS485 channel may be configured for 2-wire (half duplex) or 4-wire (full duplex) operation with or
without biasing. Switch selectable internal 120 ohm terminations are available for RS422 or RS485
data. The unit is shipped in the RS485 four wire configuration.
This unit is contained in a rugged aluminum housing with internal dc voltage regulation. The detachable
terminal blocks and LED indicators provide for easy installation and monitoring of video, data, audio,
and optical power.
The MT-91P589C-SL is designed for mounting as a modular stand alone unit. For a rack mounted
version please see the RT-91P589C-SL.
INSTALLATION
THIS INSTALLATION SHOULD BE MADE BY A QUALIFIED SERVICE PERSON AND SHOULD
CONFORM TO THE NATIONAL ELECTRICAL CODE, ANSI/NFPA 70 AND LOCAL CODES.
Mount the unit to a secure surface using #8 (3mm) hardware in four places. See the drawing on the
next page for mounting dimensions. Be sure to allow sufficient room for the required minimum bend
radius of the fiber cable used.
POWER SOURCE
THIS PRODUCT SHALL BE POWERED BY A LISTED CLASS 2 POWER SUPPLY ONLY.
This unit requires a +12VDC power source with a current rating of 1.25 amps for proper operation. A
PS-12D power supply is supplied with this unit.
POWER CONNECTION
Power is supplied to the unit via a two pin terminal connector on the right side of the unit. Follow the
label on unit for proper orientation of +12 volt dc and ground.
FIBER INPUT / OUTPUT CONNECTION
The fiber optic input / output connection is made via a FC connector located on the right side of the
unit.

VIDEO INPUT CONNECTION
The video input connection is made via a 75ΩBNC connector on the right side of the unit. For optimum
performance the video cables should be the shortest length of coax practical.
AUDIO INPUT / OUTPUT CONNECTIONS
Audio input and output connections are made via a terminal block on the right side of the unit. Follow
the label on unit for proper orientation of input and output connections. Please note that the far right pin
on the label (AUDIO OUT-) corresponds with the terminal block pin located closest to the base of the
unit.
DATA INPUT / OUTPUT CONNECTIONS
Data input and output connections are made via terminal blocks on the right side of the unit. See the
drawings below for proper orientation of input and output connections. Please note that the far right pin
on each connection drawing corresponds with the terminal pin located closest to the base of the unit.
4

CONTACT CLOSURE INPUT / OUTPUT CONNECTIONS
Data input and output connections are made via terminal blocks on the right side of the unit. See the
drawings above for proper orientation of input and output connections. Please note that the far right pin
on each connection drawing corresponds with the terminal pin located closest to the base of the unit.
TYPICAL SYSTEM DATA CONNECTIONS/SWITCH SETTINGS
The RS422 or RS485 four wire interconnection between the MT-91P589C-SL and the copper device to
which it is attached is based on industry standard EIA terminology for the transmission of electronic
data signals. Using this terminology, the driver of an electronic signal is labeled TX or Data Out.
Correspondingly, the receiver of an electronic signal is labeled RX or Data In. Following this standard,
the Data Out of the copper device is connected to the Data In of the MT-91P589C-SL. The plus
terminal of the copper device is connected to the plus terminal of the MT-91P589C-SL and the minus is
connected to the minus. The reverse flow of data from the MT-91P589C-SL to the copper device
follows the same pattern. Not all manufactures follow standard EIA terminology. Consult the installation
instructions for your copper device if you are unsure which two wires are the drive (data out) wires and
which two wires are the receive (data in) wires.
The unit is shipped, in the RS485- 4 wire configuration. For other data configurations, please refer to
the drawing below for changes to the default switch settings. These configuration switches are located
on the left side of the unit and can be modified without opening the unit.
CHANNEL BIAS/TERMINATION SWITCHES
Switches are available internally that allow offset bias and termination to be activated when using
RS485 two wire data. These switches also allow termination to be activated when using RS422 data. In
order to reconfigure the RS485/422 channel, the module needs to be opened up. To open the MT-
91P589C-SL, remove the end panel on the terminal block side and remove the screw on the bottom of
the module. Slide the PCB assembly out about half way. The configuration switch banks are located at
the center of the PCB. These switches are seldom needed to be changed from default settings (all off).
5

The MT-91P589C-SL is shipped with these
switches in the off (left) position. When transmitting
RS232 or Manchester data, the bias and
termination switches must remain in the off
position. The top (S1) switches correspond to
channel 1. The middle and bottom switch banks
correspond to channel 2 and 3 respectively. The
chart below describes the layout of the top (S1)
switch bank. The remaining switch banks follow the
same layout. Only data channels have these switch
options
Please remember when using offset bias
switches (seldom needed), they must be used in
pairs. If switch # 1 is on then switch # 3 must also
be on. The same situation applies for switch #4
and switch #6. Also, if using offset bias, it is
important that the corresponding termination
resistor switch be in the on position. Using offset
bias without a termination on the line will cause
communications to fail. An explanation follows on
general bias and termination guidelines
RS485 DATA TERMINATION
The RS485 protocol is an expanded version of the original RS422 protocol. RS485 differs from RS422
in the ability of the transmitter devices to go into a high impedance (Hi-Z) state. This allows multiple
transmitter devices to reside on the same wire pair. The software must dictate a protocol that allows
only one device to transmit at any one time to prevent data crashes. In many cases the system head
end controller will continuously poll data from all remote devices. The remote devices all respond back
to the head end (one at a time) as they are addressed. The driver chips that are used in RS485
communications are capable of changing into their high impedance state very rapidly. On even short
lengths of wire there can exist a residual voltage after a driver circuit turns off. This can interfere with
circuits that are used to detect the Hi-Z state. It is very important that the copper communications lines
be terminated with resistors across the data wire pair. The best place to locate such resistors is at the
furthest electrical devices at the ends of the wire pair. For instance, if several RS485 devices are
connected in a daisy chain fashion, the wire connection would loop across all devices in a chain. The
furthest two points in the chain would only need to be terminated.
OFFSET BIAS – RS485
The RS485 specification requires receivers to detect input signals down to 200mVp-p of voltage level.
In many cases this can cause systems to be sensitive to noise on the data wires. In an effort to
eliminate the effects of low levels of noise, some manufacturers of equipment that communicate using
RS485 have introduced a small voltage bias to the data lines. This is usually accomplished using a 470
Ohm resistance to +5V on the positive line and a 470 Ohm resistance to ground on the negative line.
When used in conjunction with the appropriate termination resistors referred to in the previous section,
this introduces about a 300 mV offset, improving noise immunity.
6

7
MT-91P589C-SL STATUS INDICATORS
The MT-91P589C-SL transmitter provides the following LED status indicators to aid in installation and
troubleshooting:
DATA TX/RX INDICATORS
DATA TX and DATA RX indicators are provided to monitor each of the available data channels. DATA
1 TX and DATA 1 RX correspond with the DATA CH 1 input and output.
DATA TX
A green LED indicator is provided to monitor the data coming in from the electrical interface, through
the MT-91P589C-SL, and out onto the fiber. The intensity of this indicator will vary with input data
patterns, however in typical applications it will cycle on and off as data is transmitted. Data transmitted
status associated with this LED is summarized below.
DATA TX LED Data Status
Green Data Flow Present
Off Data Flow Not Detected
DATA RX
A green LED indicator is provided to monitor the data coming in from the fiber, through the MT-
91P589C-SL, and out onto the electrical interface. The intensity of this indicator will vary with input data
patterns, however in typical applications it will cycle on and off as data is received. Data received status
associated with this LED is summarized below.
DATA RX LED Data Status
Green Data Flow Present
Off Data Flow Not Detected
AUDIO TX
A green LED indicator is provided to monitor the audio coming in from the electrical interface, through
the MT-91P589C-SL, and out onto the fiber. The intensity of this indicator will vary with input audio
levels, however in typical applications it will cycle on and off as audio is transmitted. Audio transmission
status associated with this LED is summarized below.
AUDIO TX LED Audio Status
Green Audio Present at Proper Signal Level
Off Audio Signal Not Detected
AUDIO RX
A green LED indicator is provided to monitor the audio coming in from the fiber, through the MT-
91P589C-SL, and out onto the electrical interface. The intensity of this indicator will vary with input
audio levels, however in typical applications it will cycle on and off as audio is received. Audio received
status associated with this LED is summarized below.
AUDIO RX LED Audio Status
Green Audio Present at Proper Signal Level
Off Audio Signal Not Detected

8
CONTACT TX
A green LED indicator is provided to monitor the contact closure coming in from the electrical interface,
through the MT-91P589C-SL, and out onto one fiber. Transmission status associated with this LED is
summarized below.
CONTACT TX LED Contact Closure Status
Green Contact Closed
Off Contact Open
CONTACT RX
A green LED indicator is provided to monitor the contact closure coming in from the fiber, through the
MT-91P589C-SL, and out onto the electrical interface. Transmission status associated with this LED is
summarized below.
CONTACT RX LED Contact Closure Status
Green Contact Closed
Off Contact Open
VLI (VIDEO LEVEL INDICATOR)
A bi-color LED indicator is provided for the video input to the MT-91P589C-SL. DC power and video
status associated with this LED is summarized on the next page.
Video Presence LED DC Power Status Video Status
Green On Proper Input Video Present
Red On Output Video Not Detected
Off Off Check Power Supply
OLI (OPTICAL LEVEL INDICATOR)
A bi-color LED indicator monitors the optical input power to the unit. DC power and optical input status
associated with this LED are summarized below.
Optical Level Indicator DC Power Status Optical Status
Green On Proper Optical Input Power Present
Red On Optical Input Not Detected
Off Off Check Power Supply
SYNC
A bi-color LED indicator is provided to monitor the proper serialization of the optical data stream
through the MT-91P589C-SL and out onto the electrical interface. DC power and sync status
associated with this LED is summarized below.
Sync LED DC Power Status Sync Status
Green On Proper Data Stream Serialization Present
Red On Data Stream Serialization Not Detected
Off Off Check Power Supply

LIFETIME WARRANTY INFORMATION
American Fibertek, Inc warrants that at the time of delivery the products delivered will be free of defects
in materials and workmanship. Defective products will be repaired or replaced at the exclusive option of
American Fibertek. A Return Material Authorization (RMA) number is required to send the products
back in case of return. All returns must be shipped prepaid. This warranty is void if the products have
been tampered with. This warranty shall be construed in accordance with New Jersey law and the
courts of New Jersey shall have exclusive jurisdiction over this contract. EXCEPT FOR THE
FOREGOING WARRANTY, THERE IS NO WARRANTY OF MERCHANTABILITY OR FITNESS FOR
A PARTICULAR PURPOSE OR OTHERWISE, EXPRESSED OR IMPLIED, WHICH EXTENDS
BEYOND THE WARRANTY SET FORTH IN THIS AGREEMENT. In any event, American Fibertek will
not be responsible or liable for contingent, consequential, or incidental damages. No agreement or
understanding, expressed or implied, except as set forth in this warranty, will be binding upon American
Fibertek unless in writing, signed by a duly authorized officer of American Fibertek.
SERVICE INFORMATION
There are no user serviceable parts inside the unit.
In the event that service is required to this unit, please direct all inquiries to:
9

Instruction Manual
MR-91P589C-SL
Video Receiver With
Bi-directional
Multi-Protocol Data
Audio and Contact Closure
© Copyright 2011, American Fibertek, Inc. 1212TS

Table of Contents
Functional Description..............................................................................…3
Installation ................................................................................................... 3
Power Source.............................................................................................. 3
Power Connection ....................................................................................... 3
Fiber Connection ......................................................................................... 4
Video Input Connection ............................................................................... 4
Data Input / Output Connections ................................................................. 4
Typical System Data Connections............................................................... 5
Data Configuration....................................................................................... 5
RS485 Data Signals .................................................................................... 6
Offset Bias - RS485..................................................................................... 6
MR-91P589C-SL Status LED Indicators...................................................... 7
Warranty...................................................................................................... 9
Service Information...................................................................................... 9
2

3
INSTALLATION AND OPERATION INSTRUCTIONS
INTRODUCTION
Thank you for purchasing your American Fibertek MR-91P589C-SL singlemode video receiver with
pluggable bi-directional multi-protocol data, bi-directional audio, and bi-directional contact closure.
Please take a few minutes to read these installation instructions in order to obtain the maximum
performance from this product.
FUNCTIONAL DESCRIPTION
The MR-91P589C-SL operates as half of a transmitter / receiver pair for the transmission of high
performance 10 bit digital NTSC, or PAL, RS170 or RS343 video signals. The MR-91P589C-SL also
supports three bi-directional multi protocol data ((RS485 (2 or 4 wire), or RS422, or RS232 or
Manchester data)), bi-directional audio, and bi-directional contact closure.
The MR-91P589C-SL de-multiplexes video, data, audio, and contact closure signals from a high speed
serial data stream. This serial data stream modulates at 1310nm wavelength. The MR-91P589C-SL
also carried on a 1310nm wavelength multiplexes a return optical serial data stream signal containing
data, audio, and contact closure channels on a 1510 nm wavelength. The 91P589C-SL Series product
is designed to operate over an optical loss budget range of 0 to 21dB. Refer to the data sheet for
detailed performance specifications.
The RS485 channel may be configured for 2-wire (half duplex) or 4-wire (full duplex) operation with or
without biasing. Switch selectable internal 120 ohm terminations are available for RS422 or RS485
data. The unit is shipped in the RS485 four wire configuration.
This unit is contained in a rugged aluminum housing with internal dc voltage regulation. The detachable
terminal blocks and LED indicators provide for easy installation and monitoring of video, data, audio,
and optical power.
The MR-91P589C-SL is designed for mounting as a modular stand alone unit. For a rack mounted
version please see the RR-91P589C-SL.
INSTALLATION
THIS INSTALLATION SHOULD BE MADE BY A QUALIFIED SERVICE PERSON AND SHOULD
CONFORM TO THE NATIONAL ELECTRICAL CODE, ANSI/NFPA 70 AND LOCAL CODES.
Mount the unit to a secure surface using #8 (3mm) hardware in four places. See the drawing on the
next page for mounting dimensions. Be sure to allow sufficient room for the required minimum bend
radius of the fiber cable used.
POWER SOURCE
THIS PRODUCT SHALL BE POWERED BY A LISTED CLASS 2 POWER SUPPLY ONLY.
This unit requires a +12VDC power source with a current rating of 1.25 amps for proper operation. A
PS-12D power supply is supplied with this unit.
POWER CONNECTION
Power is supplied to the unit via a two pin terminal connector on the right side of the unit. Follow the
label on unit for proper orientation of +12 volt dc and ground.
FIBER INPUT / OUTPUT CONNECTION
The fiber optic input / output connection is made via a FC connector located on the right side of the
unit.

VIDEO OUTPUT CONNECTION
The video output connection is made via a 75ΩBNC connector on the right side of the unit. For
optimum performance the video cables should be the shortest length of coax practical.
AUDIO INPUT / OUTPUT CONNECTIONS
Audio input and output connections are made via a terminal block on the right side of the unit. Follow
the label on unit for proper orientation of input and output connections. Please note that the far right pin
on the label (AUDIO OUT-) corresponds with the terminal block pin located closest to the base of the
unit.
DATA INPUT / OUTPUT CONNECTIONS
Data input and output connections are made via terminal blocks on the right side of the unit. See the
drawings below for proper orientation of input and output connections. Please note that the far right pin
on each connection drawing corresponds with the terminal pin located closest to the base of the unit.
CONTACT CLOSURE INPUT / OUTPUT CONNECTIONS
Contact input and output connections are made via terminal blocks on the right side of the unit. See the
drawings above for proper orientation of input and output connections. Please note that the far right pin
on each connection drawing corresponds with the terminal pin located closest to the base of the unit.
4

TYPICAL SYSTEM DATA CONNECTIONS/SWITCH SETTINGS C-SL and the copper device to
he unit is switched in the RS485 four wire configuration. For other data configurations, please refer to
The RS422 or RS485 four wire interconnection between the MR-91P589
which it is attached is based on industry standard EIA terminology for the transmission of electronic
data signals. Using this terminology, the driver of an electronic signal is labeled TX or Data Out.
Correspondingly, the receiver of an electronic signal is labeled RX or Data In. Following this standard,
the Data Out of the copper device is connected to the Data In of the MR-91P589C-SL. The plus
terminal of the copper device is connected to the plus terminal of the MR-91P589C-SL and the minus is
connected to the minus. The reverse flow of data from the MR-91P589C-SL to the copper device
follows the same pattern. Not all manufactures follow standard EIA terminology. Consult the installation
instructions for your copper device if you are unsure which two wires are the drive (data out) wires and
which two wires are the receive (data in) wires.
T
the drawing below for changes to the default switch settings. These configuration switches are located
on the left side of the unit and can be modified without opening the unit.
HANNEL BIAS/TERMINATION SWITCHES Ct bias and termination to be activated when usingSwitches are available internally that allow offse
RS485 two wire data. These switches also allow termination to be activated when using RS422 data. In
order to reconfigure the RS485/422 channel, the module needs to be opened up. To open the MR-
91P589C-SL, remove the end panel on the terminal block side and remove the screw on the bottom of
the module. Slide the PCB assembly out about half way. The configuration switch banks are located at
the center of the PCB. These switches are seldom needed to be changed from the default settings (all
off).
5

6
The MR-91P589C-SL is shipped with these switches in
must
n
lease remember when using offset bias
S485 DATA TERMINATION
the off (left) position. When transmitting RS232 or
Manchester data, the bias and termination switches
remain in the off (down) position. The top (S1) switches
corresponds to channel 1. The middle and bottom switch
banks corresponds to channel 2 and 3 respectively. The
chart below describes the layout of the top (S1) switch
bank. The remaining switch banks follow the same layout.
s Only data channels have these switch optio
P
switches (seldom needed), they must be used in
pairs. If switch #1 is on then switch #3 must also
be on. The situation applies for switch #4 and
switch #6. Also, if using offset bias, it is
important that the corresponding termination
resistor switch be in the on position. Using offset
bias without a termination on the line will cause
communication to fail. An explanation follows on
the general bias and termination guidelines.
Red version of the original RS422 protocol. RS485 differs from RS422
FFSET BIAS – RS485
The RS485 protocol is an expand
in the ability of the transmitter devices to go into a high impedance (Hi-Z) state. This allows multiple
transmitter devices to reside on the same wire pair. The software must dictate a protocol that allows
only one device to transmit at any one time to prevent data crashes. In many cases the system head
end controller will continuously poll data from all remote devices. The remote devices all respond back
to the head end (one at a time) as they are addressed. The driver chips that are used in RS485
communications are capable of changing into their high impedance state very rapidly. On even short
lengths of wire there can exist a residual voltage after a driver circuit turns off. This can interfere with
circuits that are used to detect the Hi-Z state. It is very important that the copper communications lines
be terminated with resistors across the data wire pair. The best place to locate such resistors is at the
furthest electrical devices at the ends of the wire pair. For instance, if several RS485 devices are
connected in a daisy chain fashion, the wire connection would loop across all devices in a chain. The
furthest two points in the chain would only need to be terminated.
Oquires receivers to detect input signals down to 200mVp-p of voltage level.
R-91P589C-SL STATUS INDICATORS
The RS485 specification re
In many cases this can cause systems to be sensitive to noise on the data wires. In an effort to
eliminate the effects of low levels of noise, some manufacturers of equipment that communicate using
RS485 have introduced a small voltage bias to the data lines. This is usually accomplished using a 470
Ohm resistance to +5V on the positive line and a 470 Ohm resistance to ground on the negative line.
When used in conjunction with the appropriate termination resistors referred to in the previous section,
this introduces about a 300 mV offset, improving noise immunity.
Mollowing LED status indicators to aid in installation andThe MR-91P589C-SL receiver provides the f
troubleshooting:

7
ATA TX/RX INDICATORS Dors are provided to monitor each of the available data channels. DATA
ATA TX
DATA TX and DATA RX indicat
1 TX and DATA 1 RX correspond with the DATA CH 1 input and output.
DD indicator is provided to monitor the data coming in from the electrical interface, through
DATA TX LED Data Status
A green LE
the MR-91P589C-SL, and out onto the fiber. The intensity of this indicator will vary with input data
patterns, however in typical applications it will cycle on and off as data is transmitted. Data transmitted
status associated with this LED is summarized below.
Green Data Flow Present
Off Data Flow Not Detected
ATA RXD D indicator is provided to monitor the data coming in from the fiber, through the MR-
DATA RX LED Data Status
A green LE
91P589C-SL, and out onto the electrical interface. The intensity of this indicator will vary with input data
patterns, however in typical applications it will cycle on and off as data is received. Data received status
associated with this LED is summarized below.
Green Data Flow Present
Off Data Flow Not Detected
UDIO TXA indicator is provided to monitor the audio coming in from the electrical interface, through
AUDIO TX LED Audio Status
A green LED
the MR-91P589-SL, and out onto the fiber. The intensity of this indicator will vary with input audio
levels, however in typical applications it will cycle on and off as audio is transmitted. Audio transmission
status associated with this LED is summarized below.
Green Audio Present at Proper Signal Level
Off Audio Signal Not Detected
UDIO RXA indicator is provided to monitor the audio coming in from the fiber, through the MR-
AUDIO RX LED Audio Status
A green LED
91P589-SL, and out onto the electrical interface. The intensity of this indicator will vary with input audio
levels, however in typical applications it will cycle on and off as audio is received. Audio received status
associated with this LED is summarized below.
Green Audio Present at Proper Signal Level
Off Audio Signal Not Detected

8
ONTACT TXC icator is provided to monitor the contact closure coming in from the electrical interface,
CONTACT TX LED Contact Closure Status
A green LED ind
through the MR-91P589-SL, and out onto one fiber. The transmission status associated with this LED
is summarized below.
Green Contact Present at Proper Signal Level
Off Contact Open
ONTACT RXC icator is provided to monitor the contact closure coming in from the fiber, through the
CONTACT RX LED Contact Closure Status
A green LED ind
MR-91P589-SL, and out onto the electrical interface. The intensity of this indicator will vary with input
contact levels. Transmission status associated with this LED is summarized below.
Green Contact Present at Proper Signal Level
Off Contact Signal Not Detected
LI (Video Level Indicator)V vided for the video output from the MR-91P589-SL. DC power and video
Video Presence LED DC Power Status Video Status
A bi-color LED indicator is pro
status associated with this LED is summarized below.
Green On Proper Output Video Present
Red On Output Video Not Detected
Off Off Check Power Supply
LI (Optical Level Indicator)O s the optical input power of the data signal that is being received at the
DC Power Status Optical Status
A bi-color LED indicator monitor
MR-91PXXX from the MT-91PXXX or the RT-91PXXX. DC power and optical input status associated
with this LED are summarized below.
Optical Level Indicator
Green On Proper Optical Input Power Present
Red On Optical Input Not Detected
Off Off Check Power Supply
YNCS or LED indicator is provided to monitor the proper serialization of the optical data stream
Sync LED DC Power Status Sync Status
A bi-col
through the MR-91P589C-SL and out onto the electrical interface. DC power and sync status
associated with this LED is summarized below.
Green On Proper Data Stream Serialization Present
Red On Data Stream Serialization Not Detected
Off Off Check Power Supply

9
LIFETIME WARRANTY INFORMATION e of delivery the products delivered will be free of defectsAmerican Fibertek, Inc warrants that at the tim
in materials and workmanship. Defective products will be repaired or replaced at the exclusive option of
American Fibertek. A Return Material Authorization (RMA) number is required to send the products
back in case of return. All returns must be shipped prepaid. This warranty is void if the products have
been tampered with. This warranty shall be construed in accordance with New Jersey law and the
courts of New Jersey shall have exclusive jurisdiction over this contract. EXCEPT FOR THE
FOREGOING WARRANTY, THERE IS NO WARRANTY OF MERCHANTABILITY OR FITNESS FOR
A PARTICULAR PURPOSE OR OTHERWISE, EXPRESSED OR IMPLIED, WHICH EXTENDS
BEYOND THE WARRANTY SET FORTH IN THIS AGREEMENT. In any event, American Fibertek will
not be responsible or liable for contingent, consequential, or incidental damages. No agreement or
understanding, expressed or implied, except as set forth in this warranty, will be binding upon American
Fibertek unless in writing, signed by a duly authorized officer of American Fibertek.
SERVICE INFORMATION
There are no user serviceable parts inside the unit. e direct all inquiries to:
In the event that service is required to this unit, pleas