Pub. 42004-392G
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
Model LE200-RM
®
Rack-Mount Page/Party
T ABLE OF C ONTENTS
Confidentiality Notice .....................................................................................................................1
General Information .......................................................................................................................1
Line Extender and Sub-Component Details ......................................................................................... 2
PCBA Access ........................................................................................................................................................ 3
Audio Termination Connection Module – Optional Model 12118-011 Kit .......................................................... 4
Input/Output (I//O) Termination Connection Module – Optional Model 12118-012 Kit ..................................... 5
Main PCBA........................................................................................................................................................... 6
Features and Functions ..................................................................................................................7
Page Line Audio Transmission .............................................................................................................. 7
Page Line Audio Monitoring Output .................................................................................................... 8
Line Extender
Page Line Audio Detect Output Contact .............................................................................................. 9
Page Line FSK Data Transmission (SmartSeries Systems) ................................................................ 9
Page Line 50 kHz VLC Transmission ................................................................................................. 10
Page Line Ground Fault Detection ...................................................................................................... 10
Page Line Ground Fault Re-generation .............................................................................................. 11
Page Line Ground Fault Output Contact ........................................................................................... 11
Party Line Audio Transmission ........................................................................................................... 12
Party Line Off-Hook Regeneration ..................................................................................................... 12
Party Line Off-Hook Detection ............................................................................................................ 13
Audio Line Connection Relays ............................................................................................................ 14
Audio Line Muting ................................................................................................................................ 15
®
Page/Party
Contact Closure Inputs & Relay Outputs (I /0) .................................................................................. 17
Echo Cancellation ................................................................................................................................. 17
Manual Initiation of Echo Canceling .................................................................................................................. 17
Line Balance ..................................................................................................................... 16
Data Links between Line Extenders .............................................................................................18
T1/E1 Data Link .................................................................................................................................... 18
Low Voltage Differential Signaling (LVDS) Data Link ..................................................................... 18
Configuring the Data Links ................................................................................................................. 19
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374 800-492-1212 Fax: 610-796-5954
V
ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
Table of Contents Pub. 42004-392G
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ODEL LE200-RM RACK-MOUNT PAGE/PARTY® LINE EXTENDER
T1/E1 Data Format Selection .............................................................................................................................. 19
T1 Line Build-out Settings .................................................................................................................................. 19
T1/E1 Receiver Equalization Gain Limit ............................................................................................................ 20
T1/E1 Clock Source ............................................................................................................................................ 20
T1/E1 Data Line Grounding ............................................................................................................................... 21
LVDS Data Link Settings ................................................................................................................................... 21
LVDS Port Indicators ......................................................................................................................................... 22
Typical Data Link Settings ................................................................................................................... 23
Point-to-Point Page/Party® System Connection .................................................................................................. 23
Point to Multi-point Page/Party® System Connection ........................................................................................ 24
Series Connection of Page/Party® System .......................................................................................................... 25
Rules for Interconnecting More than Two Model LE200-RMs .......................................................................... 26
Installation ....................................................................................................................................28
Mounting ................................................................................................................................................ 28
Tabletop Mounting ............................................................................................................................................. 28
Wiring .................................................................................................................................................... 28
Power Connections ............................................................................................................................................. 28
Page/Party® System Cable Connection ............................................................................................................... 28
T1/E1 Data Connections ..................................................................................................................................... 29
Contact Closure Input Connections .................................................................................................................... 30
Contact Closure Output Connections .................................................................................................................. 31
Page Line Audio Monitoring Connections ......................................................................................................... 33
Verifying the Proper Line Balance Resistance ................................................................................................... 34
Distributing Line Balance Resistance ................................................................................................................. 34
Fiber Optic Cable Connections ............................................................................................................ 35
Fiber Optic Transceiver Set-Up........................................................................................................... 36
Verification of Proper Operation ........................................................................................................................ 40
Summary of PC Board Connections and Settings .......................................................................41
Recording the Settings ..................................................................................................................45
Testing and Troubleshooting ........................................................................................................48
Generating Audio Test Signals ............................................................................................................ 48
Function Testing.................................................................................................................................... 49
Specifications ................................................................................................................................50
Replacement Parts ................................................................................................................................ 55
Frequently Asked Questions .........................................................................................................56
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374 800-492-1212 Fax: 610-796-5954
V
ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
ii
PUB. 42004-392G
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
Model LE200-RM
®
Rack-Mount Page/Party
Confidential ity Notice
This manual is provided solely as an operational, installation, and maintenance guide and contains
sensitive business and technical information that is confidential and proprietary to GAI-Tronics. GAITronics retains all intellectual property and other rights in or to the information contained herein, and such
information may only be used in connection with the operation of your GAI-Tronics product or system.
This manual may not be disclosed in any form, in whole or in part, directly or indirectly, to any third party.
Line Extender
General Information
The Model LE200-RM Rack-Mount Page/Party® Line Extender is used in pairs to extend the operating
distance of Page/Party
connected through the Line Extender using either a two-pair copper cable or fiber optic cable depending on
the distance required. The local and remote cable segments are electrically isolated through the Line
Extenders. Refer to Figure 1 for a typical block diagram.
®
, SmartSeries or ICS Page/Party® systems. Two system cable segments are
Figure 1. Typical System Block Diagram
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374 800-492-1212 Fax: 610-796-5954
V
ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
Pub. 42004-392G
ODEL LE200-RM RACK-MOUNT PAGE/PARTY® LINE EXTENDER PAGE 2 of 56
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Line Extender and Sub-Component Details
Refer to Figure 2 below for dimensional information and sub-component layout of the LE200-RM Line
Extender.
Figure 2. Model LE200-RM Line Extender Outline
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PCBA Access
The Main PCBA can be easily accessed to set up switches and jumpers. Remove the two #6-32 screws
from the rear of the unit. Slide the PCBA support plate and PCBA out of the unit. See Figure 3.
Figure 3. Access to the Model LE200-RM Line Extender’s Main PCBA
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Audio Termination Connection Module – Optional Model 12118-011 Kit
The GAI-Tronics Model 12118-011 Kit must be used if the LE200-RM is to be connected directly to a
Page/Party
Termination Connection Module for connection to the Page/Party
page line and party line 1–5 conductors of the Page/Party
®
system. This kit consists of a ribbon cable for connection to the LE200-RM, an Audio
®
system cable connect to the Audio Termination
®
system and mounting hardware. The
Connection Module. This module also can provide the 33-ohm line balance resistance needed for the
audio lines. Audio line functions are described later in this manual.
Figure 4. Audio Termination Connection Module
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Input/Output (I//O) Termination Connection Module – Optional Model 12118-012 Kit
If the LE200-RM is to be connected directly to I/O wiring then the GAI-Tronics Model 12118-011 Kit is
required. This kit consists of a ribbon cable for connection to the LE200-RM, an I/O Termination
Connection Module and mounting hardware. The I/O Termination Connection Module is for connecting
the control wiring needed to send contact closures across the Line Extenders. I/O features and functions
are described later in this manual.
Figure 5. Input/Output (I/O) Connection Module
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Main PCBA
The Main PCBA contains all the central processing and line driver circuitry for the Line Extender. The
board contains numerous connectors, switches and jumpers for setting the Line Extender operating
parameters. Figure 6 below identifies the various components on the Main PCBA. Features and functions
of each are described later in this manual.
Figure 6. 69443-xxx Main PCBA
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Fea tures and Functions
The Model LE200-RM Page/Party® Line Extenders provide the following features between Page/Party®
system cables.
Page Line Audio Transmission
A pair of Model LE200-RMs provides page line audio transmission between two Page/Party® system
cables. This transmission is half-duplex operation.
When the Line Extender detects a peak audio level equal or above a
Threshold
Time.
, it immediately switches audio “on” in that direction for the Transmission Direction Hold
Audio from the other direction is muted and ignored during that time. Audio is not switched “off”
Peak Voltage Level Detection
until it is continuously below the Peak Voltage Level Detection Threshold for the Transmission Direction
Hold Time. The DIP switch SW2 positions 5–7, located on the Main PCBA, selects Peak Voltage Level
Detection Threshold and Transmission Direction Hold Time. Refer to Figure 6 for the location of switch
SW2 on the Main PCBA and Table 1 and Table 2 below for setting options.
Table 1. Transmission Direction Hold Time Settings on Main PCBA
SW2-5 SW2-6 Transmission Direction Hold Time
Open* Open * 1280 milliseconds
Closed Open 640 milliseconds
Open Closed 160 milliseconds
Closed Closed 40 milliseconds
NOTES: 1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.
Table 2. Peak Voltage Level Detection Threshold on Main PCBA
SW2-7 Peak Voltage Level Detection Threshold
Open* −12 dB relative to nominal
Closed −24 dB relative to nominal
NOTES: 1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.
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Page Line Audio Monitoring Output
The Model LE200-RM provides a balanced 600-ohm audio output for monitoring audio on both the local
and remote page lines. LE200-RM mixes the local and remote page line audio and routes it to the 600ohm audio output terminals. This audio can be sent to any external audio device (recorder, radio
transmitter, amplifier, etc.) with an input impedance equal to or greater than 600 ohms. The audio output
gain is adjustable using DIP switch SW3 positions 5–8 on the Main PCBA. Refer to Figure 6 for the
location of switch SW3 on the Main PCBA and Table 3 below for setting options.
Table 3. Page Line Monitor Output Gain Setting on Main PCBA
SW3-5
SW3-6
SW3-7
SW3-8
Monitor Output
Gain
Open* Open* Open* Open* 0 dB
Closed Open Open Open −30 dB
Open Closed Open Open −27 dB
Closed Closed Open Open −24 dB
Open Open Closed Open −21 dB
Closed Open Closed Open −18 dB
Open Closed Closed Open −15 dB
Closed Closed Closed Open −12 dB
Open Open Open Closed −9 dB
Closed Open Open Closed −6 dB
Open Closed Open Closed −3 dB
Closed Closed Open Closed 0 dB
Open Open Closed Closed +3 dB
Closed Open Closed Closed +6 dB
Open Closed Closed Closed +9 dB
Closed Closed Closed Closed +12 dB
NOTES: 1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.
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Page Line Audio Detect Output Contact
The Model LE200-RM provides a contact closure output that activates whenever audio is detected on the
page line. The contact can be set to close when audio is detected at the local page line, the remote page
line, or both. Typically this contact is used in conjunction with the Page Line Audio Monitoring Output to
provide a control contact to external devices or systems when page line audio is present. The contact
remains active for 1 second after the audio is no longer detected. DIP switch SW5 positions 6 and 7
enables or disables the output contact. Refer to Figure 6 for the location of switch SW5 on the Main
PCBA and Table 4 below for setting options.
Table 4. Page Line Audio Detect Contact Main PCBA
SW5-6 SW5-7 Audio Detect Contact Operati on
Closed Closed Disabled
Open Closed Local page line audio activates the contact
Closed Open Remote page line audio activates the contact
Open* Open* Both local and remote page line audio activates the contact
NOTES: 1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.
Page Line FSK Data Transmission (SmartSeries System s)
A pair of Model LE200-RM Line Extenders re-generates the FSK data transmission between two
SmartSeries Page/Party
SmartSeries Page/Party
both Line Extenders must have this feature enabled by setting DIP switch SW5 position 1. Refer to Figure
6 for the location of switch SW5 on the Main PCBA and Table 5 below for setting options.
SW5-1 Page Line FSK Transmission
Open* FSK data is disabled.
Closed FSK data is enabled.
NOTES: 1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.
OTE: FSK operation and VLC operation (described below) cannot be enabled at the same time.
N
FSK operation is only used with SmartSeries systems.
VLC operation is only used within NON-SmartSeries systems. If both VLC and FSK are enabled at
the same time, neither feature will function correctly.
®
system cables. FSK data transmission occurs on the page line allowing
®
stations to communicate with the system control cabinet. For proper operation,
Table 5. Page Line FSK Transmission on Main PCBA
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Page Line 50 kHz VLC Transmission
A pair of Model LE200-RM Line Extenders re-generates the 50 kHz VLC control signal between two
Page/Party
speaker volume of Page/Party
on/off control functions on some Page/Party
®
system cables. 50 kHz VLC signaling occurs on the page line and is typically used to alter the
®
stations equipped VLC receivers. VLC signals may also be used for other
®
systems. For proper operation, both Line Extenders must
have this feature enabled by setting DIP switch SW5 position 2. Refer to Refer to Figure 6 for the location
of switch SW5 on the Main PCBA and Table 6 below for setting options.
Table 6. Page Line 50 kHz VLC Transmission Setting on Main PCBA
SW5-2 Page Line 50 kHz VLC Transmission
Open* 50 kHz VLC is disabled.
Closed 50 kHz VLC is enabled.
NOTES: 1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.
OTE: FSK operation and VLC operation (described above) cannot be enabled at the same time.
N
FSK operation is only used with SmartSeries systems.
VLC operation is only used within NON-SmartSeries systems. If both VLC and FSK are enabled at
the same time, neither feature will function correctly.
Page Line Ground Fault Detection
The Model LE200-RM Line Extenders provide page line ground fault detection on the local Page/Party®
system cable. If multiple LE200-RMs are connected to the same Page/Party
one page line ground fault detector may be enabled. A shorting clip setting at header P5 on the Main
PCBA enables the page line ground fault detection. Refer to Figure 6 for the location of header P5 on the
Main PCBA and Table 7 below for setting options:
Table 7. Page Line Ground Fault Detection Setting on Main PCBA
P5 Shorting Clip Page Line Ground Fault Detection
Pins 1–2* Page line ground fault detection is disabled.
Pins 2–3 Page line ground fault detection is enabled.
Removed Page line ground fault detection is disabled.
NOTES:
1. If connecting an LE200-RM to the same system cable segment as an ADVANCE Page/Party
Interface (PPI) card, disable the LE200-RM page line ground fault detector. The PPI card contains the
ground fault detector. If both ground fault circuits are enabled simultaneously, intermittent
SmartSeries FSK data errors will occur between the PPI card and SmartSeries stations.
2. Changes to this parameter take effect without cycling power.
3. *Indicates default position.
®
system cable segment, only
®
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Page Line Ground Fault Re-generation
When a ground fault is detected at a remote LE200-RM Line Extender, the ground fault can be duplicated
on the local Page/Party
®
system cable. DIP switch SW5 position 3 enables regeneration of the ground
fault. Refer to Figure 6 for the location of switch SW5 on the Main PCBA and Table 8 below for setting
options.
Table 8. Page Line Ground Fault Regeneration Setting on Main PCBA
SW5-3 Page Line Groun d Fault Regeneration
Open* Disabled - Page line ground faults detected on the remote system cable are NOT
regenerated on the local system cable.
Closed Enabled - Page line ground faults detected on the remote system cable are regenerated on
the local system cable.
NOTES:
1. The ground fault regeneration feature is used in SmartSeries systems to allow a ground fault on the
remote cable segment to be detected by the system control cabinet. Disable this feature if the Line
Extender is not installed in this type system.
2. Changes to this parameter take effect without cycling power.
3. *Indicates default position.
Page Line Ground Fault Output Contact
The Model LE200-RM provides a relay contact that activates whenever a ground fault is detected on the
local page line, remote page line or both the page lines. The ground fault detection feature (described
above) must be enabled. The contact output can be used to activate an external device or system which
annunciates the fault condition. The DIP switch SW5 positions 4 and 5 configure which page line ground
faults activate this contact. Refer to Figure 6 for the location of switch SW5 on the Main PCBA and Table
9 below for setting options.
Table 9. Page Line Ground Fault Contact Setting on Main PCBA
SW5-4 SW5-5 Page Line Ground Fault Contact
Closed Closed Disabled
Closed Open Remote page line ground fault activates the contact.
Open Closed Local page line ground fault activates the contact.
Open* Open* Both Local and Remote page line ground faults activate the contact.
NOTES: 1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.
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Party Line Audio Transmission
A pair of Model LE200-RM Line Extenders provides full duplex party line audio between two Page/Party®
system cables, for party lines 1–5. During on-hook conditions of the party lines (meaning no handset
stations are in use), the LE200-RM will mute the local party line analog circuits. If it is necessary to have
party line audio enabled even when no stations are off-hook, DIP switch SW6-3 may be closed to disable
this muting feature. This switch affects the on-hook muting function of all five party lines simultaneously.
Refer to Figure 6 for the location of switch SW6 on the Main PCBA and Table 10 below for setting
options.
Table 10. Party Line On-Hook Muting Setting on Main PCBA
SW6-3 Party Line On-H ook Muting
Open* Enabled – local party lines are muted when no handset stations are in-use.
Closed Disabled – party line audio is never muted.
NOTES: 1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.
Party Line Off-Hook Regeneration
When an off-hook handset station is detected, the LE200-RM can transmit the off-hook condition to
remote Line Extenders so that it is duplicated on the remote Page/Party
feature is used in systems that contain a telephone interface device so that the caller is transferred to the
party line when a handset station answers the call. DIP switch SW6 position 2 is used to enable this
feature. This switch affects the off-hook regeneration function of all five party lines. Refer to Figure 6 for
the location SW6 on the Main PCBA and the Table 11 below for setting options.
Table 11. Off-Hook Regeneration on Main PCBA
SW6-2 Off-Hook Regeneration Setting
Open* Enabled – an off hook condition on the local party line is regenerated at the
remote Line Extender.
Closed Disabled
NOTES: 1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.
®
system cable. Typically this
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Party Line Off-Hook Detection
The Model LE200-RM Line Extenders provide off-hook detection on the local Page/Party® system cable
for party lines 1 through 5. An off-hook condition means a handset station is in use. If multiple Line
Extenders are connected to the same Page/Party
enabled. If connecting an LE200-RM to the same system cable segment as an ADVANCE Page/Party
Interface (PPI) card, disable the LE200-RM off-hook detection for party lines 1 and 2. The PPI card
contains off-hook detection for party lines 1 and 2.
Several shorting clips (P6–P15) are used to enable the off-hook detection feature on party line 1 through 5.
Two shorting clips are associated with each party line and must be set to the same position for proper
operation. The party lines 1–5 are configured independently. Refer to Figure 6 for the location of P6–P15
on the Main PCBA and Table 12 below for setting options.
Table 12. Party Line Off-Hook Detection Setting on Main PCBA
Party Line Headers Shorting Clip Off-Hook Dete ction
®
system cable segment, only one off-hook detector can be
Pins 1–2* Disabled
NOTES:
Party Line 1 P15, P14
Party Line 2 P13, P12
Party Line 3 P11, P10
Party Line 4 P9, P8
Party Line 5 P7, P6
Pins 2–3 Enabled
Removed Disabled
Pins 1–2* Disabled
Pins 2–3 Enabled
Removed Disabled
Pins 1–2* Disabled
Pins 2–3 Enabled
Removed Disabled
Pins 1–2* Disabled
Pins 2–3 Enabled
Removed Disabled
Pins 1–2* Disabled
Pins 2–3 Enabled
Removed Disabled
1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.
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Audio Line Connection Relays
The Model LE200-RM has relays that disconnect the page, party lines 1–5 and the page monitoring output
connections from the Main PCBA. The disconnect feature is used for special applications such as
connection of a single party line system or other scenarios in which a particular audio line is not physically
connected to the Line Extender. DIP switch SW4 is used to control the audio line disconnect feature.
Refer to Figure 6 for the location of SW4 on the Main PCBA and Table 13 below for setting options.
Table 13. Audio Line Connection Relay Settings on Main PCBA
Audio Line Switch SW4 Setting Field Wiring
Party line 5 SW4-1
Party line 4 SW4-2
Party line 3 SW4-3
Party line 2 SW4-4
Party line 1 SW4-5
Page line SW4-6
Page monitor SW4-7
N/A SW4-8
Open Disconnected
Closed* Connected
Open Disconnected
Closed* Connected
Open Disconnected
Closed* Connected
Open Disconnected
Closed* Connected
Open Disconnected
Closed* Connected
Open Disconnected
Closed* Connected
Open Disconnected
Closed* Connected
Open
Not used
Closed*
NOTES: 1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.
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Audio Line Muting
In some system configurations, the Page/Party® system cable is not connected to the Line Extender. In this
case, all audio lines (page and party lines 1–5) should be muted since they are not physically connected.
DIP switch SW6 position 4 on the Main PCBA enables this feature. If this feature is enabled, it is
unnecessary to disconnect the audio lines using the audio line relays (mentioned above). Refer to Figure 6
for the location of SW6 on the Main PCBA and Table 14 below for setting options.
Table 14. Audio Line Mute Setting on Main PCBA
SW6-4 Mute Analog Lines Setting
Open* Disabled - Party lines 1–5 and page line are operational.
Closed Enabled - Party lines 1–5 and page line are muted.
NOTES: 1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.
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Page/Party® Line Balance
For proper system operation, the page line and party lines 1–5 must be terminated with a resistance of
approximately 33 ohms. The Model LE200-RM provides potentiometers to set the line balance resistance
on the page line and five party lines. The line balance resistors are located on the Audio Termination
Connection Module (part of Model 12118-011 Kit) next to the page and party line terminal blocks. The
line balance resistors are adjustable or can be disabled using shorting clips P1–P7.
If connecting an LE200-RM to the same system cable segment as an ADVANCE Page/Party Interface
(PPI) card, disable the line balance for party lines 1, 2 and the page line. The PPI card provides the line
balance resistors for these audio lines. Refer to Figure 4 for the location of the jumpers and potentiometers
on the Audio Termination Connection Module and the Table 15 for setting details.
®
Table 15. Page/Party
Line Balance Settings on Audio Termination Connection Module
Audio Line Header Shorting Clip Line Balance
Pins 1–2* Disabled
Party line 5 P6
Removed Disabled
Pins 1–2* Disabled
Party line 4 P3
Removed Disabled
Pins 1–2* Disabled
Party line 3 P1
Removed Disabled
Pins 1–2* Disabled
Party line 2 P2
Removed Disabled
Pins 1–2* Disabled
Party line 1 P4
Adjustment
Potentiometer
R23 Pins 2–3 Enabled
R19 Pins 2–3 Enabled
R3 Pins 2–3 Enabled
R4 Pins 2–3 Enabled
R20 Pins 2–3 Enabled
Removed Disabled
Pins 1–2* Disabled
Page line P7
R24 Pins 2–3 Enabled
Removed Disabled
NOTES: *Indicates default position.
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Contact Closure Inputs & Relay Outputs (I/0)
Five independent contact closures can be transmitted across a pair of Line Extenders meaning that an
active input contact on the local Line Extender results in the corresponding output relay contact energizing
on the remote Line Extender. Contact closures are bi-directional.
Example: Closing a switch contact across input #1 of the local Line Extender results in relay output #1
activating on the remote Line Extender and vice versa. When the input contact is removed the
corresponding output relay de-activates. No switch or jumper setting is required on the Main PCBA for
configuring the I/O feature.
OTE: Any active output contacts will deactivate if the data link is broken between the Line Extenders.
N
Echo Cancellation
Line echo (also known as electric or hybrid echo) is created by the electrical circuitry connected to a twowire (full duplex) audio system. Echo is inherent in all full-duplex audio systems and is affected by the
audio line length and line impedance mismatches. The presence of audible echoes results in undesirable
audio quality. This kind of quality degradation is inherent in network equipment and end-user phone
devices.
To minimize echo, the Model LE200-RM performs an echo cancellation sequence on party lines 1 through
5. The echo cancellation process takes approximately 15 seconds and is performed automatically one
minute after power is applied to the LE200-RM. This delay allows all power levels to stabilize prior to
performing echo cancellation.
OTE: Signal impulses are transmitted onto the party lines during the echo cancellation process. Handset
N
stations that are in use on a party line will hear the signals in the handset receiver. For troubleshooting
purposes, the 1-minute delay may be disabled by closing DIP switch SW6 position 1. Refer to Figure 6 for
the location of SW6 on the Main PCBA and Table 16 below for setting details.
Table 16. Echo Cancellation Power-On Delay Setting on Main PCBA
SW6-1 Echo Cancellation Power-On Delay
Open* 1 minute
Closed No delay
NOTES: 1. Changes to this parameter take effect when cycling power.
2. *Indicates default position.
Manual Initiation of Echo Canceling
Echo cancellation can be manually initiated as described below.
Press and release push button PB1 on the Main PCBA three times. The push button must be pressed for at
least 0.25 second and no more than 2 seconds each time. The timing requirement is meant to prevent
accidental requests. If an error is made with the push-button timing, the sequence must be repeated from
the beginning.
The LEDs on the Main PCBA will indicate the progress of the echo canceling sequence. One column of
LEDs turns on after each push button press release until the sequence is started. Once the sequence is
started, those LEDs remain on, and a countdown timer is displayed on the remaining LEDs. The LEDs
turn OFF after the echo cancellation training sequence is complete.
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Data Links between Line Extenders
The LE200-RM is equipped with two different data link types for connecting to another Line Extender.
The two data types are T1/E1 and Low Voltage Differential Signaling (LVDS). The type of data
connection(s) required is determined by the system architecture. It is possible to use both types at the
same time to achieve complex system architectures. Each data type, the intended use, and the applicable
switch settings are described below.
T1/E1 Data Link
The T1/E1 data link connection is the most common and is used when one pair of Model LE300 Line
Extenders are connected in point to point system architecture over a long distance. The T1/E1 carrier
technology uses dedicated copper cable or fiber optic cable when equipped with a T1/E1 fiber optic
modem. The distance between Line Extenders determines the type of connection needed. Copper wire
connections between the Line Extenders require a two-pair cable and will operate at a distance of up to
6000 feet using No. 22 AWG wire. For distances greater than 6000 feet, a T1/E1 fiber optic transceiver
and fiber optic cable must be used.
OTE: The Model LE200-RM is NOT designed for use with the public switched telephone network.
N
Low Voltage Differential Signaling (LVD S) Data Link
The LVDS data link connection is used to connect two or more LE200-RM Line Extenders in a “daisy
chain” fashion when the Line Extenders are located within 10 meters of each other. The LVDS data link
requires a straight-through CAT5e cable between Line Extenders. Each Line Extender contains an LVDS
data “in” port and an LVDS data “out” port. The “out” port of the first Line Extender connects to the “in”
port of the next Line Extender. This connection scheme can be used to link up to a maximum of eight Line
Extenders and is typically used when multiple Line Extenders are installed in a central location.
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Configuring the Data Links
The T1/E1 and LVDS data link parameters between Line Extenders must be configured using multiple
DIP switch settings on the Main PCBA. The following sections describe each parameter and the switch
settings.
T1/E1 Data Format Selection
The LE200-RM supports both T1 and E1data line connections between units. T1 is a digital circuit that
uses the DS-1 (Digital Signaling level 1) signaling format to transmit voice/data at 1.544 Mbps. T1 can
carry up to 24 digital channels for voice or data. E1 is the European equivalent of the T1, except E1
carries information at the rate of 2.048 Mbps. E1 is used to transmit 30 digital channels for voice or data
plus one channel for signaling, and one channel for framing and maintenance.
DIP switch SW5 position 8 on the Main PCBA selects the data link format for the digital audio
transmission between Line Extenders. Both Line Extenders must be set to the same format. Refer to
Figure 6 for the location of SW5 on the Main PCBA and Table 17 below for setting details.
Table 17. Data Format Setting on Main PCBA
SW5-8 Format
Open* T1 Mode (1.544 Mbps, 24-channel)
Closed E1 Mode (2.048 Mbps, 32-channel)
NOTES: 1. Changes to this parameter take effect after cycling power.
2. *Indicates default position.
T1 Line Build-out Settings
This option allows the user to control the wave shape being output by the transmitter. This helps to correct
problems related to long copper cables. Improperly setting this switch will cause signal degradation. The
proper setting refers to the cable distance between two LE200-RM Line Extenders. If connecting to a fiber
optic transceiver, it refers to the copper cable distance between the LE300-RM Main PCBA and the fiber
optic transceiver and should be set to 0–133 feet (default setting). DIP switches SW2 positions 1–3 on the
Main PCBA selects line-build out parameters. Refer to Figure 6 for the location of SW2 on the Main
PCBA and Table 18 below for setting details.
Table 18. T1 Line Length Setting on Main PCBA
SW2-1 SW2-2 SW2-3 T1 Line Length
Open (up)* Open (up)* Open (up)* 0 to 133 feet
Closed (down) Open (up) Open (up) 133 to 266 feet
Open (up) Closed (down) Open (up) 266 to 399 feet
Closed (down) Closed (down) Open (up) 399 to 533 feet
Open (up) Open (up) Closed (down) 533 to 655 feet
NOTES: 1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.
3. These switches have no effect in E1 mode.
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T1/E1 Receiver Equalization Gain Limit
This option allows the user to compensate for diminishing signal intensity over the data line by adjusting
the sensitivity of the receiver. By setting the Receive Equalizer Gain Limit, very long copper lines can be
utilized. DIP switch SW2 position 4 on the Main PCBA selects the parameter. Refer to Figure 6 for the
location of SW2 on the Main PCBA and Table 19 below for setting details.
Table 19. Receive Equalizer Gain Limit Setting on Main PCBA
SW2-4
Receive Equalization Gain Limit
T1 Mode E1 Mode
Open (up)* −36 dB (long haul) −12 dB (short haul)
Closed (down) −15 dB (limited long haul) −43 dB (long haul)
NOTES: 1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.
T1/E1 Clock Source
For each pair of Line Extenders, one Line Extender must be the master clock source. The other unit must
be the slave. The slave unit receives the clock from the master. DIP switch SW3 positions 1 and 2 on the
Main PCBA selects T1/E1 clock parameters. Refer to Figure 6 for the location of SW3 on the Main PCBA
and Table 20 below for setting details.
Table 20. Master Clock Setting on Main PCBA
SW3-1 SW3-2 Clock Source
Open* Open* LE200-RM is the T1/E1 Master (generates the T1/E1 clock).
Closed Closed LE200-RM is the T1/E1 Slave (receives the T1/E1 clock from master).
NOTES: 1. Changes to this parameter take effect after cycling power.
2. *Indicates default position.
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T1/E1 Data Line Grounding
T1/E1 data line can be floating or grounded. When floating, neither conductor of the data line cable pair is
connected to ground. Headers P20 and P21 control the grounding of the T1/E1 lines. Grounding the
T1/E1 lines may reduce emissions if it becomes an installation concern. Refer to Figure 6 for the location
of P20 and P21 on the Main PCBA and Table 21 below for setting details.
Table 21. T1/E1 Data Line Grounding setting on Main PCBA
Header Shorting Cl i p Grounding Condition
P20 1–2* T1/E1 Rx line - floating
2–3 T1/E1 Rx line - grounded
Removed T1/E1 Rx line - floating
P21 1–2* T1/E1 Tx line - floating
2–3 T1/E1 Tx line - grounded
Removed T1/E1 Tx line - floating
*Indicates default position.
NOTE
LVDS Data Link Settings
Do not ground the T1/E1 lines at both ends. Doing so will create a ground loop.
The LVDS “in” port is disabled unless it is receiving a signal from LVDS “out” from another Line
Extender. Switch SW3 position 3 enables the LVDS “in” port. Refer to Figure 6 for the location of SW3
on the Main PCBA and Table 22 below for setting details.
Table 22. LVDS “IN” Setting on Main PCBA
SW3-3 Enable/Disable LVDS “IN” Port
Open* The LVDS “in” port is disabled (no cable connection from another LE200-RM.)
Closed The LVDS “in” port is enabled (cable is connected to LVDS “out” cable connection
from anther to LVDS.
NOTES: 1. Changes to this parameter take effect after cycling power.
2. *Indicates default position.
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The LVDS “out” port is disabled unless the Line Extender is transmitting an LVDS signal to another Line
Extender’s LVDS “in” port. Switch SW3 position 4 enables the LVDS “out” port. Refer to Figure 6 for
the location of SW3 on the Main PCBA and Table 23 below for setting details.
Table 23. LVDS “OUT” Setting on Main PCBA
SW3-4 Enable/Disable LVDS “OUT” Port
Open* LVDS “out” is disabled.
Closed LVDS “out” is enabled.
NOTES: 1. Changes to this parameter take effect without cycling power.
2. *Indicates default position.
NOTE
Do not connect LVDS “in” to LVDS “out” on the same Model LE200-RM. Doing so
creates a feedback path that usually results in (extremely loud) oscillations on the page line, all party lines,
and possibly the contact outputs.
LVDS Port Indicators
Each LVDS port has two LEDs. The green LED is ON when the LE200-RM detects a signal connection
from the other LE200-RM connected to that port. The yellow/orange LED is ON when the LE200-RM
detects page line data (SmartSeries FSK or 50 kHz VLC) on the LVDS port.
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Typical Data Link Settings
The following section shows the most common Line Extender connection schemes and the expected T1/E1
and LVDS data line parameters for each. Consult the applicable tables above to determine the correct
switch settings. Consult GAI-Tronics for technical support of connection schemes not shown in this
manual.
Point-to-Point Page/Party® System Connection
Figure 7. Point-to-Point Page/Party
®
System Connection
®
Table 24. Point-to-Point Page/Party
Parameter Switch Configuration Description
System Connection Table
T1 Line Length SW2 Determined by installation distance between LE200-RMs.
T1/E1 Clock Source SW3-1
SW3-2
Unit A is the master clock source:
SW3-1 (open) SW3-2 (open)
Unit B is the slave and uses the T1/E1 clock from Unit A:
SW3-1 (closed) SW3-2 (closed)
LVDS Clock Source SW3-3
SW3-4
Not used - disable both LVDS “in” and “LVDS out”:
SW3-3 (open) SW3-4 (open)
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Point to Multi-point Page/Party® System Connection
Figure 8. Point to Multi-point Page/Party
®
System Connection
Table 25. Point to Multi-point Page/Party
Parameter Switch Configuration Description
®
System Connection Table
T1 Line Length SW2 Determined by installation distance between each pair of Line Extenders:
A to D
B to E
C to F
T1/E1 Clock
Source
SW3-1
SW3-2
Units A, B, and C are the master T1/E1 clock sources:
SW3-1 (open) SW3-2 (open)
Unit D is a slave and uses the T1/E1 clock from Unit A:
SW3-1 (closed) SW3-2 (closed)
Unit E is a slave and uses the T1/E1 clock from Unit B:
SW3-1 (closed) SW3-2 (closed)
Unit F is a slave and uses the T1/E1 clock from Unit C:
SW3-1 (closed) SW3-2 (closed)
LVDS Data
Line
SW3-3
SW3-4
LVDS data link is used between units A, B and C.
Unit A - “LVDS in” disabled, “LVDS out” enabled:
SW3-3 (open) SW3-4 (closed)
Unit B - “LVDS in” enabled, “LVDS out” enabled:
SW3-3 (closed) SW3-4 (closed)
Unit C - “LVDS in ” enabled, “LVDS out” disabled:
SW3-3 (closed) SW3-4 (open)
Mute Analog
Lines
SW6-4 Units B and C are muted since there is not a Page/Party® cable connected:
SW6-4 (closed)
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Series Connection of Page/Party® System
Figure 9. Series Connection of Page/Party
®
System
Table 26. Series Connection of Page/Party
Parameter Switch Configuration Description
®
System Table
T1 Line Length SW2 Determined by installation distance between each pair of Line Extenders:
A to B
C to D
T1/E1 Clock
Source
SW3-1
SW3-2
Units A and C are the master T1/E1 clock sources:
SW3-1 (open) SW3-2 (open)
Unit B is the slave and uses the T1/E1 clock from Unit A:
SW3-1 (closed) SW3-2 (closed)
Unit D is the slave and uses the T1/E1 clock from Unit C:
SW3-1 (closed) SW3-2 (closed)
LVDS Clock
Source
SW3-3
SW3-4
LVDS clock is used between units B and C:
Unit B - “in” disabled, “out” enabled:
SW3-3 (open) SW3-4 (closed)
Unit C - “in” enabled, “out” disabled:
SW3-3 (closed) SW3-4 (open)
Mute Analog
Lines
SW6-4 Unit C is muted since there is not a Page/Party® cable connected:
SW6-4 (closed)
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Rules for Interconnecting More than Two Model LE200-RMs
When connecting more than two Model LE200-RMs together, these rules must be followed.
A maximum of two Model LE200-RM pairs can be connected in series when the series connections
are made using Page/Party
®
cable as shown below.
Figure 10. Maximum Series Connections
When the Model LE200-RMs are connected in series, a problem can arise when training the echo
cancellation. If more than one Model LE200-RM is training echo cancellation on a signal line at the
same time, then none of them will train echo cancellation properly. To prevent this, power each Line
Extender one at a time. Wait for the echo cancellation to complete on the first Line Extender before
powering the second.
A maximum of eight pairs of Model LE200-RMs can be connected in parallel. Parallel connections
must be made using the LVDS link and the T1/E1 link as shown below.
Figure 11. Maximum Parallel Connections
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A maximum of 16 Model LE200-RMs can be connected within a single zone or Page/Party
®
subsystem.
®
Avoid having more than one Model LE200-RM connected to a particular Page/Party
cable. Instead,
use the LVDS link whenever possible.
Line extenders can NOT be wired in a loop architecture for redundant connections as shown below:
Figure 12. Invalid Loop Connection of Page/Party
®
Systems
All contact input states are ORed together to determine a contact output state.
All remote page line audio detected states are ORed together to determine the state of the page line
audio detected relay contact output.
All remote page line ground fault states are ORed together to determine the state of the page line
ground fault relay contact output.
When enabled, 50 kHz VLC signal on any page line is transmitted to all page lines.
SmartSeries FSK data on any page line is transmitted to all page lines.
Manual retraining of echo cancellation at one Model LE200-RM also requests it at all digitally
interconnected Model LE200-RMs.
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Installation
ATTENTION
Installation should be performed by qualified service personnel only in
accordance with the National Electric al Code or applicable local codes.
Mounting
The Model LE200-RM Rack-Mount Line Extender can be placed on a table or desk, or it can be mounted
in a standard EIA 19-inch electronic equipment rack. The LE200-RM unit requires 1U (1.75 inches) in a
standard 19-inch rack. If the LE200-RM is installed in an electronic equipment rack, complete the
following steps:
1. Install the mounted brackets with the eight 8-32 3/8-inch screws provided.
2. Mount the LE200-RM into the rack using the four 10-32 3/4-inch screws provided.
Tabletop Mounting
If the Model LE200-RM is to be placed on a table or desk, install the five stabilizing feet.
Wiring
Pressure-type terminal blocks are provided on the optional Model 12118-011 and 12118-012 Connection
Module Kits for connecting the incoming field wiring. The terminal blocks can support a wire size of No.
24 AWG to 12 AWG. It is recommended that the installer crimp ferrules on the end of each wire before
inserting the wire into the terminal block to ensure a reliable termination. Wiring connections to the
connection modules are described below.
Power Connections
Connect input power of 48 V dc to P17 on the rear panel of the LE200-RM. Common must be connected
to earth ground at the power supply.
Page/Party® System Cable Connection
Connect the audio conductors (page line and party line 1–5) of the Page/Party® system cable to either P5 or
P8 on the Audio Termination Connection Module of the Model 12118-011 Kit. Each connection point is
labeled next to the terminal block as shown below.
Figure 13. Page/Party
®
Cable Terminals
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When using GAI-Tronics 60029 Series system cable, follow the wiring color code as shown in Table 27
below:
Table 27. Color Codes for GAI-Tronics 60029 Series System Cable
Terminal
Designator
GTC System
Cable Color Code
Description
P5-1/P8-1 PAGE - L1 Red/blue
Page line audio
P5-2/P8-2 PAGE - L2 Blue/red
P5-3/P8-3 PARTY 1 - L1 Red
Party line 1 audio
P5-4/P8-4 PARTY 1 - L2 Tan/red
P5-5/P8-5 PARTY 2 - L1 Violet
Party line 2 audio
P5-6/P8-6 PARTY 2 - L2 Tan/violet
P5-7/P8-7 PARTY 3 - L1 Blue
Party line 3 audio
P5-8/P8-8 PARTY 3 - L2 Tan/blue
P5-9/P8-9 PARTY 4 - L1 Brown
Party line 4 audio
P5-10/P8-10 PARTY 4 - L2 Tan/brown
P5-11/P8-11 PARTY 5 - L1 Yellow
Party line 5 audio
P5-12/P8-12 PARTY 5 - L2 Tan/yellow
T1/E1 Data Connections
A two-pair cable is required for the T1/E1 data line connection between Line Extenders. Connect the
T1/E1 data cable to P19 on the Main PCBA. The transmit (TX) and receive (RX) pairs between Line
Extenders must be wired in a cross-over fashion such that the TX terminals of Line Extender #1 are
connected to the RX terminals of Line Extender #2 and vice-versa. Each data cable connection point is
labeled next to the terminal block P19 as shown below.
Figure 14. Data Line Terminals
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Table 28. Terminal Block P19
Terminal Designator Description
P19-1 TX Ring
Data TRANSMIT wire pair
P19-2 TX Tip
P19-3 RX Ring
Data RECEIVE wire pair
P19-4 RX Tip
NOTE
Do NOT connect the TX (transmit) signal to the RX (receive) signal on the same
Model LE200-RM Line Extender. Doing so creates a feedback path that usually results in extremely
loud oscillations on the page line and the party lines. The contact outputs may also activate.
Contact Closure Input Connections
Contact inputs are typically connected to switches or mechanical relay contacts. Five inputs are available
on Model 12118-012 Kit with each input requiring two conductors. Connect the normally open contact
across the top and bottom. If using a solid state switch as the input device, observe polarity of the
connection (−) on bottom, (+) on top. Each input cable connection point is labeled next to the terminal
block TB8 and 9 as shown in Figure 15 below.
Figure 15. Input Contact Terminals
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Table 29. TB8 and TB9
Terminal Designator Description
TB8 Input 1 (+)
Input contact 1
TB8 Input 1 (−)
TB8 Input 2 (+)
Input contact 2
TB8 Input 2 (−)
TB8 Input 3 (+)
Input contact 3
TB8 Input 3 (−)
TB9 Input 4 (+)
Input contact 4
TB9 Input 4 (−)
TB9 Input 5 (+)
Input contact 5
TB9 Input 5 (−)
Contact Closure Output Connections
Seven relay outputs are provided. Each relay output provides two contact sets and each contact set
consists of normally open (NO), common (C) and normally closed (NC) contacts. Outputs 1–5 are
activated by inputs 1–5 on the remote Line Extender. Output 6 is activated when page line audio is
detected and output 7 is activated when a page line ground fault is detected. Terminals are provided on the
Model 12118-012 Kit for each relay contact and are labeled with the relay contact description next to the
terminal block TB1-7 as shown below.
Figure 16. Relay Output Terminals
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Table 30. Contact Closure Output Connections
Terminal Designator Description
N.C.
TB1 (Top)
TB1 (Bottom)
TB2 (Top)
TB2 (Bottom)
TB3 (Top)
Output 1 – contact #1 COM
N.O.
N.C.
Output 1 – contact #2 COM
N.O.
N.C.
Output 2 – contact #1 COM
N.O.
N.C.
Output 2 – contact #2 COM
N.O.
N.C.
Output 3 – contact #1 COM
N.O.
N.C.
TB3 (Bottom)
TB4 (Top)
TB4 (Bottom)
TB5 (Top)
Output 3 – contact #2 COM
N.O.
N.C.
Output 4 – contact #1 COM
N.O.
N.C.
Output 4 – contact #2 COM
N.O.
N.C.
Output 5 – contact #1 COM
N.O.
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Terminal Designator Description
N.C.
TB5 (Bottom)
Output 5 – contact #2 COM
N.O.
N.C.
TB6 (Top)
Page line audio – contact #1 COM
N.O.
N.C.
TB6 (Bottom)
Page line audio – contact #2 COM
N.O.
N.C.
TB7 (Top)
Page line ground fault – contact #1 COM
N.O.
N.C.
TB7 (Bottom)
Page line ground fault – contact #2 COM
N.O.
Page Line Audio Monitoring Connections
The Model LE200-RM provides a balanced 600-ohm audio output for monitoring audio on both the local
and remote page lines. Connect any external audio input device (audio recorder, radio transmitter,
amplifier, etc.) to the audio line monitoring terminals using a twisted pair cable. The input impedance of
the audio device should be 600 ohms or greater. Terminals are located at connector P16 on the Main
PCBA and are labeled as shown below.
Table 31.
Terminal Designator Description
P16-1 PG MON L2 Page line monitor audio output (L2)
P16-2 − No connection
P16-3 PG MON L1 Page line monitor audio output (L1)
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Verifying the Proper Line Balance Resistance
For proper Line Extender operation, the line balance resistance, for both page and party lines, should be set
close to 33 ohms. This can be done by enabling and adjusting the line balance potentiometers on the
69441-xxx terminal board using an ohmmeter.
When the line balance potentiometer is enabled, it is possible to measure the selected dc resistance
directly. One side of the ohmmeter should connect to the exposed header pin on the header used to enable
or disable the line balance potentiometer. The other side of the ohmmeter should connect to the side of the
associated 15-ohm series resistor closest to the edge of the printed circuit board. Ensure the 15-ohm
resistor is part of the measurement before adjusting the potentiometer for the correct resistance. All six
circuits are symmetric and their signals have minimal overlap. If the incorrect series resistor is chosen,
then the ohmmeter should read an open circuit.
Distributing Line Balance Resistance
As an increasing length of cable is added from the Line Extender the effects of cable resistance should be
taken into consideration. The farther a Page/Party
®
station is connected to the system cable from the line
balance resistance the greater the chance deficiencies in system behavior may occur. The station farthest
away from the line balance will exhibit increased sidetone audio in the handset earpiece and will place
higher than nominal levels of audio onto the system cable. Stations receiving this audio nearby will have
louder than expected outputs. These same stations receiving audio from other stations near the line
balance resistance will have lower than expected outputs due to the line loss of the cable resistance. A
system showing these characteristics should have distributed line balancing.
For reference, if a line balance is installed at both ends of one mile of 18 gauge cable, then both line
balances should be set to nominally 46.7 ohms. The one mile of cable provides approximately 33 ohms of
resistance in each leg; the resulting series-parallel combination will result in the devices installed at both
ends seeing a line impedance of approximately 33 ohms.
SmartSeries systems utilize FSK for communication on the page line between the stations and the Line
Extender. Since FSK frequencies range between 31 kHz and 33 kHz instead of audio frequencies, the
effects of longer cable lengths will present itself sooner. The higher frequency will lend to a greater
probability that standing waves of the FSK signal will be present. The cable length, in addition to the
number of cable branches present, will combine to determine the severity of these standing waves. Severe
standing waves present on the line can cause a portion of the system devices to be unable to properly
communicate with the Line Extender giving the need for distributing the line balance resistance.
Determining the cable resistance with any accuracy in installed systems is too difficult. Fortunately, the
resistance values to be installed can be determined without using the cable resistance in the calculation, as
precise accuracy is not necessary to achieve acceptable system functionality. The resistance values
installed should always calculate to a nominal parallel resistance of 33 ohms. One of the line balance
resistances can be the resistance included on the 69441-xxx terminal board, but it is not a requirement. It
will provide a resistance up to 115 ohms determined by the position of the potentiometer. Examples of
line balance resistances that could be installed are 51║100 ohms, 68║68 ohms or 100║100║100 ohms. It
is best to install the line balance resistors as far apart from one another in cable distance as possible.
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Fiber Optic Cable Connections
Model LE200-RM can be used with an optional fiber optic interface. This consists of a chassis
(GTRFP6972-102) and either a multimode fiber transceiver (GTRFP6972-201) or a single mode fiber
transceiver (GTRFP6972-202), as shown below in Figure 17.
Figure 17. T1/E1 Fiber Optic Transceiver (top view)
Transceiver GTRFP6972-201 requires multi-mode fiber optic cable and Transceiver GTRFP6972-202
requires single-mode fiber optic cable. With either model, the fibers must be terminated with ST-type
connectors. The fiber optic cables between Line Extenders must be connected in a “cross-over” fashion
meaning the Transmit (XMIT) port of Line Extender #1 connects to the Receive (RCV) port of Line
Extender #2 and vice-versa as shown below.
Figure 18. Fiber Optic Cable Connection
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Fiber Optic Transceiver Set-Up
The Fiber Optic Transceiver contains two DIP switches as shown below. To access the switches, the
module must be removed from the chassis. Loosen the screw and pull out the transceiver module.
Figure 19. DIP Switches on Fiber Optic Transceiver
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These switches are factory set according to Table 32 below. It is recommended that the default
configuration (passive mode) is used for most typical applications. Passive mode allows the fiber segment
to pass data unchanged between the T1/E1 segments independent of the actual line coding (AMI, B8ZS, or
HDB3). All errors and fault conditions from one T1/E1 end will pass through the fiber to the other end as
if there were one long T1/E1 connection. Use these settings to insure proper operation of the Model
LE200-RM Line Extender.
Table 32. Factory Settings for the Fiber Optic Transceiver
Function Factory Setting
T1/E1 mode T1
Receive Equalizer Gain Limit (EGL) −30 dB (Limited Long Haul)
Line encoding AMI (passive mode)
Transmit LIU wave shape (Build-out) DSX-1 (0 to 133 feet) 0 dB CSU
Receive LIU termination Receive side 100 ohms enabled
Transmit data source Standard data
Jitter attenuator Place jitter attenuator on TX side
Select remote management Remote management disabled
Loopback selection No loopback
Monitor/boost mode No boost
NRZ selection Disable NRZ (passive mode)
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Table 33 below outlines the functions settings for DIP switch S2:
Table 33. Function Settings for DIP Switch S2
Function Setting
T1/E1 Selection
Receive
Equalizer Gain
Limit
Line Encoding
Transmit LIU
Wave Shape
(Build-out)
S2-1: OFF; T1 mode selected ( d efau lt se tt ing)
S2-1: ON; E1 mode selected
E1
S2-2: ON; −12 dB Short Haul
S2-2: OFF; −43 dB Long Haul
T1
S2-2: ON; −36 dB Long Haul
S2-2: OFF; −30 dB Limited Long Haul (default setting)
S2-3: ON; B8ZS or T1 or HDB3 for E1
S2-3: OFF; AMI (default setting)
E1
S2-4 S2-5 S2-6
ON ON ON 75 ohms
OFF ON ON 125 ohms
ON ON OFF 75 S ohms with High Return Loss
OFF ON OFF 125 S ohms with High Return Loss
T1
S2-4 S2-5 S2-6
ON ON ON DSX-1 (0 to 133 feet) 0 dB CSU (default setting)
OFF ON ON DSX-1 (133 to 266 feet)
ON OFF ON DSX-1 (266 to 399 feet)
OFF OFF ON DSX-1 (399 to 533 feet)
ON ON OFF DSX-1 (533 to 655 feet)
OFF ON OFF −7.5 dB CSU
ON OFF OFF −15 dB CSU
OFF OFF OFF −22.5 dB CSU
S2-7: ON; S2-8: ON; Receive side termination disabled
Receive LIU
Termination
S2-7: OFF; S2-8: ON; Receive side 120 ohms enabled
S2-7: ON; S2-8: OFF; Receive side 100 ohms enabled (default set ting)
S2-7: OFF; S2-8: OFF; Receive side 75 ohms enabled
S2-9: ON; S2-10: ON; Standard data (default setting)
Transmit Data
Source
S2-9: OFF; S2-10: ON; Transmit pseudo-random bit sequence (PRBS)
S2-9: ON; S2-10: OFF; Transmit alternating ones and zeros
S2-9: OFF; S2-10: OFF; Transmit unframed all ones
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Table 34 outlines the function settings for DIP switch S3:
Table 34. Function Settings for DIP Switch S3
Function Setting
Jitter
Attenuator
Select
Remote
Management
Loopback
Selection
Monitor/Boost
Mode
NRZ Selection
Fiber Type
S3-1: ON; Place jitter attenuator on RCV side
S3-1: OFF; Place jitter attenuator on XMT side (default setting)
S3-2: ON; Remote management enabled (only at the REMOTE end)
S3-2: OFF; Remote management disabled (only at the LOCAL end) (default setting)
S3-3: ON; S3-4: ON; None (default se tt ing)
S3-3: OFF; S3-4: ON; Local loopback
S3-3: ON; S3-4: OFF; Analog loopback
S3-3: OFF; S3-4: OFF; Remote loopback
S3-5: ON; S3-6: ON; Normal operation (No boost) (default set t ing)
S3-5: OFF; S3-6 ON; 20 dB
S3-5: ON; S3-6 OFF; 26 dB
S3-5: OFF; S3-6 OFF; 32 dB
S3-7: ON; Disable NRZ (Required for Passive Mode) (defau lt se tt ing)
S3-7: OFF; Enable NRZ (Line Terminating Mode)
S3-8: Factory configured; DO NOT CHANGE
S3-9: Factory configured; DO NOT CHANGE
S3-10: Factory configured; DO NOT CHANGE
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Verification of Proper Operation
This section describes the LEDs and their functions. The fiber port LED RM is the only LED that should
be lit on the modules under normal operating conditions.
Table 35. Copper Port Indicators
Indicator Function
LPBK Glows green when the module is set to one of the loopback modes.
NO LNK Glows green when a link is NOT established.
Only used when the Transmit Data Source option is set to PRBS. This LED will glow
PBEO
amber when the module receives errors and will stay dark when the converter receives
a PRBS without errors.
Table 36. Fiber Optic Port Indicators
Indicator Function
NRZ Glows green when the NRZ mode is enabled.
RM
Glows green on the remote unit when remote management is enabled. Glows green on
the local unit when it has discovered a remote unit with remote management enabled.
NO LNK Glows green when a fiber link has NOT been established.
SYM
Glows amber when a 4-bit to 5-bit (4b/5b) symbol encoding error in the fiber line is
detected.
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Summary of PC Board Connections and Settings
Table 37. Audio Line Termination Connection Module
Designator Type Function
J1 DB-25 connector Connect to J4 on Main PCBA via ribbon cable.
P1 Jumper clip Party line #3 line balance resistor (enabled/disabled)
P2 Jumper clip Party line #2 line balance resistor (enabled/disabled)
P3 Jumper clip Party line #4 line balance resistor (enabled/disabled)
P4 Jumper clip Party line #1 line balance resistor (enabled/disabled)
P6 Jumper clip Party line #5 line balance resistor (enabled/disabled
P7 Jumper clip Page line balance resistor (enabled/disabled)
P5 & P8 Terminal block Page line - Terminals 1 and 2
Party line 1 - Terminals 3 and 4
Party line 2 - Terminals 5 and 6
Party line 3 - Terminals 7 and 8
Party line 4 - Terminals 9 and 10
Party line 5 - Terminals 11 and 12
R3 Potentiometer Party line #3 line balance resistance
R4 Potentiometer Party line #2 line balance resistance
R19 Potentiometer Party line #4 line balance resistance
R20 Potentiometer Party line #1 line balance resistance
R23 Potentiometer Party line #5 line balance resistance
R24 Potentiometer Page line, line balance resistance
TB1 Terminal block Chassis ground - Terminals 1 and 2
TB2 Terminal block Chassis ground - Terminals 1 and 2
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Table 38. Input/Output Termination Connection Module
Designator Type Function
J1 DB-25 connector Connect to J3 on Main PCBA via ribbon cable
TB1 Terminal block Field connections for contact output #1
The board’s silkscreen indicates the connections; the pin
numbers are not labeled.
TB2 Terminal block Field connections for contact output #2
The board’s silkscreen indicates the connections; the pin
numbers are not labeled.
TB3 Terminal block Field connections for contact output #3
The board’s silkscreen indicates the connections; the pin
numbers are not labeled.
TB4 Terminal block Field connections for contact output #4
The board’s silkscreen indicates the connections; the pin
numbers are not labeled.
TB5 Terminal block Field connections for contact output #5
The board’s silkscreen indicates the connections; the pin
numbers are not labeled.
TB6 Terminal block Field connections for page audio detected contact output
The board’s silkscreen indicates the connections; the pin
numbers are not labeled.
TB7 Terminal block Field connections for page ground fault contact output
The board’s silkscreen indicates the connections; the pin
numbers are not labeled.
TB8 Terminal block Field connections for contact inputs #1, #2, and #3
The board’s silkscreen indicates the connections; the pin
numbers are not labeled.
TB9 Terminal block Field connections for contact inputs #4 and #5
Field connections for chassis ground
The board’s silkscreen indicates the connections; the pin
numbers are not labeled.
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Table 39. Main PCBA
Designator Type Function
J1 RJ45 receptacle LVDS data “out”
J2 RJ45 receptacle LVDS data “in”
J3 DB-25
connector
J4 DB-25
connector
Connect to J1 on Termination Connection Module via 25-pin ribbon
cable.
Connect to J1 on Page/Party® Termination Connection Module via
25-pin ribbon cable.
P1 N/A Not installed
P2 Post header No connection - used during production testing of PCBA
P3 N/A Not installed
P4 Post header No connection - used during production testing of PCBA
P5 Jumper clip Page line ground fault detector (enabled/disabled)
P6, P7 Jumper clip Party line #5 off-hook detector (enabled/disabled)
P8, P9 Jumper clip Party line #4 off-hook detector (enabled/disabled)
P10, P11 Jumper clip Party line #3 off-hook detector (enabled/disabled)
P12, P13 Jumper clip Party line #2 off-hook detector (enabled/disabled)
P14, P15 Jumper clip Party line #1 off-hook detector (enabled/disabled)
P16 Terminal block Page line monitor output - Terminals 1 and 3
No connection - Terminal 2
P17, P18 Terminal block Power 48 V dc (+) - Terminal 1
Power 48 V dc (−) - Terminal 2
P19 Terminal block T1/E1 Data TX (ring) - Terminal 1
T1/E1 Data TX (tip) - Terminal 2
T1/E1 Data RX (ring) - Terminal 3
T1/E1 Data RX (tip) - Terminal 4
P20 Jumper clip T1/E1 receive transformer center tap floating/grounded.
P21 Jumper clip T1/E1 transmit transformer center tap floating/grounded.
PB1 Push-button
Used to retrain the echo cancellation circuit.
switch
SW1 Rotary HEX
Used for diagnostic purposes. Set to 0 during normal operation.
switch
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Designator Type Function
SW2 Eight-position
DIP switch
SW3 Eight-position
DIP switch
Position 1 - T1 line build out bit 0
Position 2 - T1 line build out bit 1
Position 3 - T1 line build out bit 2
Position 4 - T1/E1 receive equalizer gain limit
Position 5 - Page audio hold time (bit 1)
Test waveform select (bit 1)
Position 6 - Page audio hold time (bit 2)
Test waveform select (bit 2)
Position 7 - Page audio detect threshold
Test waveform select (bit 2)
Position 8 - Test waveform enable
Position 1 - T1/E1 clock source (master/slave)
Position 2 - T1/E1 clock source (master/slave)
Position 3 - LVDS “in” (enabled/disabled)
Position 4 - LVDS “out” (enabled/disabled)
Position 5 - 600-ohm audio monitor volume (bit 1)
Position 6 - 600-ohm audio monitor volume (bit 2)
Position 7 - 600-ohm audio monitor volume (bit 3)
Position 8 - 600-ohm audio monitor volume (bit 4)
SW4 8-position
DIP switch
SW5 Eight-position
DIP switch
SW6 Four-position
DIP switch
Position 1 - Party line 5 (connect/disconnect)
Position 2 - Party line 4(connect/disconnect)
Position 3 - Party line 3 (connect/disconnect)
Position 4 - Party line 2 (connect/disconnect)
Position 5 - Party line 1 (connect/disconnect)
Position 6 - Page line (connect/disconnect)
Position 7 - Page line monitor output (connect/disconnect)
Position 8 - Not used
Position 1 - SmartSeries page line FSK data (enable/disable)
Position 2 - 50 kHz page line VLC signal (enable/disable)
Position 3 - Regenerate page line ground fault (enable/disable)
Position 4 - GND fault contact activates on local page line fault.
Position 5 - GND fault contact activates on remote page line fault.
Position 6 - Page audio contact activates on local page line audio.
Position 7 - Page audio contact activates on remote page line audio.
Position 8 - T1 or E1 mode selection
Position 1 - One minute startup delay of echo cancellation training
(enable/disable)
Position 2 - Local party line off-hook regeneration (enable/disable)
Position 3 - On-hook party line muting (enable/disable)
Position 4 - Mute all audio lines (enable/disable)
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Recording the Settings
The following tables have been included to document the “as installed” LE200-RM settings for future
reference.
Table 40. Line Balance Resistor Enable on Audio Line Termination Connection Module
Header Setting Note
P1 Party line #3
P2 Party line #2
P3 Party line #4
P4 Party line #1
P6 Party line #5
P7 Page line
Table 41. Line Balance Resistance on Audio Line Termination Connection Module
Potentiometer Setting Note
R3 Party line #3
R4 Party line #2
R19 Party line #4
R20 Party line #1
R23 Party line #5
R24 Page line
Table 42. Off-hook and Ground Fault Detection on Main PCBA
Header Setting Note
P5 Page line ground fault detector
P6, P7 Party line #5 off-hook detector
P8, P9 Party line #4 off-hook detector
P10, P11 Party line #3 off-hook detector
P12, P13 Party line #2 off-hook detector
P14, P15 Party line #1 off-hook detector
Rotary Switch SW1 on Main PCBA
Set to “0” during normal operation.
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Table 43. DIP Switch SW2 on Main PCBA
Switch Setting Function
SW2-1
SW2-2
T1 line length
SW2-3
SW2-4 T1/E1 receive equalizer gain limit
SW2-5
Page line transmission direction hold time
SW2-6
SW2-7 Page line peak voltage level detection threshold
SW2-8 Open (Up) Used during testing only.
Table 44. DIP Switch SW3 on Main PCBA
Switch Setting Function
SW3-1
T1/E1 master/slave
SW3-2
SW3-3 Enable LVDS “in”
SW3-4 Enable LVDS “out”
SW3-5
SW3-6
Monitor volume
SW3-7
SW3-8
Table 45. DIP Switch SW4 on Main PCBA
Switch Setting Note
SW4-1 Party line #5 connection to terminal board
SW4-2 Party line #4 connection to terminal board
SW4-3 Party line #3 connection to terminal board
SW4-4 Party line #2 connection to terminal board
SW4-5 Party line #1 connection to terminal board
SW4-6 Page line connection to terminal board
SW4-7 Monitor output connection to terminal block
SW4-8 N/A Not used
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Table 46. DIP Switch SW5 on Main PCBA
Switch Setting Note
SW5-1 Enable FSK data for SmartSeries systems
SW5-2 Enable 50 kHz VLC
SW5-3 Regenerate page line ground fault
SW5-4 Local ground fault activates output contact
SW5-5 Remote ground fault activates output contact
SW5-6 Local page audio activates output contact
SW5-7 Remote page audio activates output contact
SW5-8 Select T1 mode or E1 mode
Table 47. DIP Switch SW6 on Main PCBA
Switch Setting Note
SW6-1 Startup delay of echo cancellation training
SW6-2 Local party line off-hook regeneration
SW6-3 On-hook party line muting
SW6-4 Mute analog circuits
Table 48. T1/E1 Line Grounding on Main PCBA
Header Setting Note
P20 T1/E1 Line receive
P21 T1/E1 Line transmit
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T esting and T roubleshooting
Generating Audio Test Signals
The Model LE200-RM is capable of generating several testing waveforms onto the audio lines of the
page/party system to aid in system testing and troubleshooting. Rotary switch SW1 on the Main PCBA
determines which Page/Party
which testing waveform is generated. Closing DIP switch SW2-8 enables the test waveform. Switches
SW2-5 through SW2-7 select a test waveform. Note that the frequency selections are different on the
selected audio party line. Refer to tables below for valid switch settings.
®
audio line will receive the test waveform. DIP switch SW2 determines
Table 49.
SW1
Selected
Page/Party
®
Line
Selected Tone SW2-5
SW2-6 SW2-7 SW2-8
1 Party line #1 7 kHz (sine wave) Open Open Open Closed
6 Page line 4 kHz (sine wave) Closed Open Open Closed
2 kHz (sine wave) Open Closed Open Closed
1 kHz (sine wave) Closed Closed Open Closed
500 Hz (sine wave) Open Open Closed Closed
125 Hz (sine wave) Closed Open Closed Closed
1 kHz (saw tooth wave) Open Closed Closed Closed
31 Hz pulses Closed Closed Closed Closed
SW1
Selected
Page/Party
®
Line
Selected Tone SW2-5
SW2-6 SW2-7 SW2-8
2 Party line #2 3.5 kHz (sine wave) Open Open Open Closed
3 Party line #3 2.0 kHz (sine wave) Closed Open Open Closed
4 Party line #4 1.0 kHz (sine wave) Open Closed Open Closed
5 Party line #5 500 Hz (sine wave) Closed Closed Open Closed
250 Hz (sine wave) Open Open Closed Closed
125 Hz (sine wave) Closed Open Closed Closed
1 kHz (saw tooth wave) Open Closed Closed Closed
31 Hz Pulses Closed Closed Closed Closed
NOTE: Remember to restore SW1 to “0” and SW2 to its initial setting when no longer generating test
signals.
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Function Testing
The Model LE200-RM can manually activate some of the system “control” functions to aid in system
trouble-shooting or commissioning. Functions include relay contact outputs, party line off-hook
generation, page line ground fault generation, and the LVDS connector LEDs. Similar to the audio test
generation, rotary switch SW1 and DIP switch SW2 are used to activate the various functions. Refer to the
tables below for valid switch settings.
Table 50. Generated Data Signaling on Page Line
SW1 Selected Data Signal SW2-5 SW2-6 SW2-7 SW2-8
50.087 kHz sine wave (VLC tone) Closed Open Open Closed
30.720 kHz sine wave (SmartSeries data 0) Open Closed Open Closed
B
32.941 kHz sine wave (SmartSeries data 1) Closed Closed Open Closed
SmartSeries data 1/0 pattern Open Open Closed Closed
Random waveform containing all signals above. Closed Open Closed Closed
NOTE: Remember to restore SW1 to “0” and SW2 to its initial setting when no longer generating test
signals.
Table 51. Activate Contact Closure Outputs
SW1 Selected Function SW2 SW2-8
Activate contact output #1 SW2-1 Closed Closed
Activate contact output #2 SW2-2 Closed Closed
Activate contact output #3 SW2-3 Closed Closed
7
Activate contact output #4 SW2-4 Closed Closed
Activate contact output #5 SW2-5 Closed Closed
Activate page audio detect contact SW2-6 Closed Closed
Activate page ground fault detect contact SW2-7 Closed Closed
NOTE: Remember to restore SW1 to “0” and SW2 to its initial setting when no longer generating test
signals.
Table 52. Generate Off-Hook & Ground Fault Conditions
SW1 Selected Function SW2 SW2-8
Party line #1 off-hook SW2-1 Closed Closed
Party line #2 off-hook SW2-2 Closed Closed
Party line #3 off-hook SW2-3 Closed Closed
7
Party line #4 off-hook SW2-4 Closed Closed
Party line #5 off-hook SW2-5 Closed Closed
Page line ground fault SW2-6 Closed Closed
NOTE: Remember to restore SW1 to “0” and SW2 to its initial setting when no longer generating test
signals.
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Specification s
Electrical
Supply Voltage
Input voltage ...................................................................................................................... 48 volts dc, ±5%
Input power consumption ................................................................................................ 12 watts (nominal)
48 watts (maximum)
DC operating current ................................................................................................. 250 mA (idle, nominal)
1000 mA (maximum)
T1 Parameters
NOTE: The LE200-RM is not compatible with the public switched telephone network.
Encoding ....................................................................................... (Bipolar with 8 Zero Substitution) B8ZS
Framing ............................................................................................................. (Extended Superframe) ESF
E1 Parameters
NOTE: The LE200-RM is not compatible with the public switched telephone network.
Encoding ..................................................................................................... (High Density Bipolar 3) HDB3
Framing ............................................................................................... (Cyclic Redundancy Check 4) CRC4
Signaling ................................................................................................ (Common Channel Signaling) CCS
Copper Cabling
Type ............................................................. Twisted pair data cable (i.e., CAT5), shielding recommended
Cable characteristic impedance, T1/E1 .................................................................... 100 /120 (nominal)
Maximum cable length ............................................................................. 6,000 feet/1.8 km (No. 22 AWG)
Maximum attenuation ........................................................................................................................... 24 dB
Fiber Cabling (using optional transceiver)
GTRFP6972-102 chassis with GTRFP6972-201 transceiver ................................... Multi-mode 62/125 µm
GTRFP6972-102 chassis with GTRFP6972-202 transceiver .................................... Single mode 9/125 µm
LVDS Cabling
Type .......................................................................................... Straight-through Shielded CAT 5e Ethernet
Cable characteristic impedance ........................................................................................... 100 (nominal)
Maximum cable length ................................................................................................................... 10 meters
Line Balance Characteristics
Coupling ...................................................................................................................................... AC coupled
Adjustment range ...................................................................... Disabled, 15 to 115 adjustable (nominal)
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Page Line or Party Line Maximum Peak Working Voltage
L1 to L2 ............................................................................................................................ 30 V dc nominal
L1 or L2 to ground .......................................................................................................... 120 V dc nominal
Page Line Data
VLC frequency................................................................................................................. 50,087 Hz nominal
FSK high frequency (start bit) ......................................................................................... 32,914 Hz nominal
FSK low frequency (stop bit) ........................................................................................... 30,720 Hz nominal
FSK baud rate ............................................................................................................... 2400 bits per second
Page line data voltage transmit level ................................................ 707 mVrms 3 dB @ 33 impedance
Output type.................................... Current source with 3.3 k impedance, transformer coupled (nominal)
VLC frequency capture range .............................. (within) inside 43,886 frequency 57,600 Hz nominal
VLC frequency release range ........................... (beyond) outside 40,070 frequency 65,829 Hz nominal
FSK high frequency capture range ....................... (within) inside 32,914 frequency 34,133 Hz nominal
FSK high frequency release range ................... (beyond) outside 31,779 frequency 36,864 Hz nominal
FSK low frequency capture range ........................ (within) inside 29,729 frequency 31,779 Hz nominal
FSK low frequency release range .................... (beyond) outside 27,106 frequency 31,779 Hz nominal
Page line data voltage detected range ....................................................................................... 100 mVrms
Page line data voltage not detected range .................................................................................. 4.0 mVrms
Page Line Monitor Audio from Eith er Page Line
Frequency response ........................................................................... 300 Hz to 7.0 kHz 0.5 dB @ −10 dB
Reference voltage level ............................................................. 775 mVrms @ 600 impedance (nominal)
Output type..................................... Voltage source with 600 impedance, transformer coupled (nominal)
Gain error ........................................................................................................ 3 dB @ 1,020 Hz sine wave
0 dB ref. 775 mVrms @ 600 impedance
Distortion + noise ................................................................................. THD < 1.0% @ 1,020 Hz sine wave
0 dB ref. 775 mVrms @ 600 impedance
Sampling rate ....................................................................................... 16,000 samples per second 32 ppm
Encoding .............................................................................................................................................. Linear
Direction ..................................................................................................................................... Output only
Gain adjustment range ..................................................................... −30 to +12 dB in 3-dB steps (nominal)
Maximum Peak Working Voltage L1 to L2 ..................................................................... 15 V dc nominal
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Page Line Audio between Two LE200-RMs
Frequency response ........................................................................... 300 Hz to 7.0 kHz 0.5 dB @ −10 dB
Reference voltage level ................................................................... 1.5 Vrms @ 33 impedance (nominal)
Output type.................................... Current source with 3.3 k impedance, transformer coupled (nominal)
Gain error ........................................................................................................ 3 dB @ 1,020 Hz sine wave
0 dB ref. 1.5 Vrms @ 33 impedance both ends
Distortion + noise .................................................................................. THD <1.0% @ 1,020 Hz sine wave
0 dB ref. 1.5 Vrms @ 33 impedance both ends
Sampling rate ...................................................................................... 16,000 samples per second 32 ppm
Encoding .............................................................................................................................................. Linear
Direction ..................................................................................................................................... Half duplex
N
OTE: Refer to text for considerations when connecting LE200-RMs in series.
Party Line #1 Audio between Two LE200-RMs
Frequency response ........................................................................... 300 Hz to 7.0 kHz 0.5 dB @ −10 dB
Reference voltage level ................................................................... 1.5 Vrms @ 33 impedance (nominal)
Output type.................................... Current source with 3.3 k impedance, transformer coupled (nominal)
Gain error ........................................................................................................ 3 dB @ 1,020 Hz sine wave
0 dB ref. 1.5 Vrms @ 33 impedance both ends
Distortion + noise .................................................................................. THD <1.0% @ 1,020 Hz sine wave
0 dB ref. 1.5 Vrms @ 33 impedance both ends
Sampling rate ....................................................................................... 16,000 samples per second 32 ppm
Encoding .............................................................................................................................................. Linear
Direction ...................................................................................................................................... Full duplex
N
OTE: Refer to text for considerations when connecting LE200-RMs in series.
Party Line #2 to # 5 Audio between Two LE200-R Ms
Frequency response ........................................................................... 300 Hz to 3.5 kHz 0.5 dB @ −10 dB
Reference voltage level ................................................................... 1.5 Vrms @ 33 impedance (nominal)
Output type.................................... Current source with 3.3 k impedance, transformer coupled (nominal)
Gain error ........................................................................................................ 3 dB @ 1,020 Hz sine wave
0 dB ref. 1.5 Vrms @ 33 impedance both ends
Distortion + noise .................................................................................. THD <1.0% @ 1,020 Hz sine wave
0 dB ref. 1.5 Vrms @ 33 impedance both ends
Sampling rate ......................................................................................... 8,000 samples per second 32 ppm
Encoding .............................................................................................................................................. Linear
Direction ...................................................................................................................................... Full duplex
N
OTE: Refer to text for considerations when connecting LE200-RMs in series.
Page Line Audio Detection
Detection peak voltage threshold selections ...................................................... −12 or −24 dB ref. nominal
Detection hold time selections ................................................... 40, 160, 640, 1280 milliseconds (nominal)
Hold time on audio detected relay output ....................................................................... 1 second (nominal)
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Page Line Ground Fault Detection
DC resistance from either L1 or L2 to ground for fault .................................................................. 5,000
DC resistance from either L1 or L2 to ground for no fault ............................................................. 8,000
Minimum ground fault duration for detection ............................................................. 10 seconds (nominal)
Minimum no ground fault duration for detection ........................................................ 10 seconds (nominal)
No ground fault to ground fault propagation delay .............................. 20 seconds includes detection time
Ground fault to no ground fault propagation delay .............................. 20 seconds includes detection time
N
OTE: Rapidly changing ground fault conditions may or may not be detected.
Page Line Ground Fault Generation
Resistance when generating ground fault .......................................................................... 3.3 k (nominal)
Resistance when not generating ground fault .................................................................................... 1 M
N
OTE: The resistance is from the center tap of the page line coupling transformer to ground.
Party Line Off-hook detectio n
DC resistance between L1 and L2 for off-hook ................................................................................. 300
DC resistance between L1 and L2 for on-hook ............................................................................ 30,000
Minimum off-hook duration for detection ........................................................... 50 milliseconds (nominal)
Minimum on-hook duration for detection ...................................................................... 5 seconds (nominal)
On-hook to off-hook propagation delay ................................................ 0.5 second includes detection time
Off-hook to on-hook propagation delay ............................................... 10 seconds includes detection time
N
OTE: Rapidly changing off-hook or on-hook conditions may or may not be detected.
Contact Outputs (using optional I/O kit)
Contact output type .......................................................................................... DPDT miniature signal relay
Switching power .................................................................................................... 30 W dc (resistive load)
62.5 VA ac (resistive load)
Switching voltage.......................................................................................................................... 110 V dc
125 V ac
Switching current ................................................................................................................................ 1.0 A
Minimum switching capacity ............................................................................. 10 A, 10 mV dc (nominal)
N
OTE: When neither the T1/E1 Link nor the LVDS link is detected, the contact outputs are de-energized.
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Contact Inputs (using option al I/O kit)
Dry contact input open resistance ................................................................................................. 20,000
Dry contact input closed resistance .................................................................................................... 200
Wet contact input open voltage ........................................................................ 2.6 voltage +3.6 volts dc
Wet contact input closed voltage ...................................................................... 0.0 voltage 0.23 volts dc
Contact input allowed voltage ......................................................................... 0.0 voltage +3.6 volts dc
Contact input sink current ........................................................................................................... 1.0 mA dc
Contact input state duration ............................................................................................................... 50 ms
Contact input to contact output delay ................................................................................................ 50 ms
Contact input to contact output jitter .................................................................................................. 10 ms
Contact input to contact output pulse width tolerance ....................................................................... 10 ms
N
OTES:
1. Rapidly changing contact inputs may or may not be detected.
2. Contact input to contact output specifications does not include the effects of relay bounce.
3. The contact input’s negative terminal is tied directly to the LE200-RM’s signal ground.
4. Wet contact input voltages are measured at the input terminals on the I/O Connection Module.
5. The “wet contact input closed voltage” may be difficult to achieve when connecting a bipolar open
collector output to a contact input.
6. A driving high wet contact input will source current to the LE200-RM when the LE200-RM is not
powered. This current may or may not prevent the LE200-RM from powering up properly.
7. Be aware of the ground loop(s) formed when using wet contact inputs.
Fiber Optic Transceiver (using optio nal transceiver)
Nominal Voltage ................................................................................................................................ 48 V dc
Maximum Current ............................................................................................................................. 500 mA
Optical Port Type ....................................................................................................................................... ST
Wavelength
GTRFP6972-102 chassis with GTRFP6972-201 transceiver ............................................. 1310 nm
GTRFP6972-102 chassis with GTRFP6972-202 transceiver ............................................. 1310 nm
Range dB (km)
N
OTE: The maximum data transmission distance archived over a fiber optic link depends on many
factors, such as Transmit Power, Receiver Sensitivity / Saturation, the number of fiber connectors,
splices and
cable type. Prior to designing or installing a fiber optic system, a loss budget analysis is
recommended to make certain the system will work over the proposed link. Both the passive and active
components of the circuit have to be included in the budget loss calculation. Passive loss is made up of
fiber loss, connector loss, and splice loss. Don't forget any couplers or splitters in the link. Active
components are system gain, wavelength, transmitter power, receiver sensitivity, and dynamic range. Prior
to system turn up, test the circuit with a source and FO power meter to ensure that it is within the loss
budget. The following distance information is approximate and
based on an overall power loss budget.
GTRFP6972-102 chassis with GTRFP6972-201 transceiver (62/125 µm cable) 12 dB power budget (5 km)
GTRFP6972-102 chassis with GTRFP6972-201 transceiver (9/125 µm cable) 31 dB power budget (80 km)
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Mechanical
Enclosure material ................................................................................................................................. Steel
Mounting .................................................................................................. Rack-mount, IU Standard, 19-inch
Unit dimensions .......................................... 1.72 H 17 W 9.66 D inches (431 245 44 mm) nominal
Unit weight.......................................................................................................................................... 9.5 lbs.
Environmental
Temperature range ....................................................................................... 0° to +50° C (+32° to +122° F)
Relative humidity ................................................................................................... 10–85% non-condensing
Replacement Parts
Part Number Description
51809-008 Fuse, 2 A
69443-002 Line Extender Main PCBA
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Frequently Asked Questions
Q: Why does it take so long for the propagation of off-hook to on-hook transitions?
A: The line balance ac coupling capacitors take some time to charge. Also, the delay helps to prevent
audio from looking like an on-hook condition.
Q: Why does it take so long for the propagation of the page line ground fault transitions?
A: If the delay was not there, then page line audio might appear to be a ground fault.
Q: Why is shielded cable specified for the LVDS cable?
A: To improve the link’s noise immunity. Most likely, the clock signal that controls one of the LE200RM s passes over the LVDS cable.
Q: Is the LE200-RM compatible with the public switched telephone network?
A: No.
Q: Does the LE200-RM have on-board primary protection for the T1/E1 cable?
A: No.
Q: Why is the LE200-RM not compatible with the public switched telephone network?
A: (1) It is not approved for such use. (2) At a minimum, it does not support the facility data link
transmission required for such use.
Q: Can I connect a Model LE300 to an LE200-RM?
A. Yes, these units are electrically compatible, only mechanical changes were made between the LE200
and LE300.
Q: Can I connect a Model LE300-MM or a Model LE300-SM to a LE200-RM
A. Yes. However an optional fiber optic transceiver will be required.
Q: Can I connect a Model LE200-RM to an LE100?
A: No, the T1 connection cannot be used to connect an LE200-RM to an LE100. However, an analog
connection can be used, i.e., an LE200-RM and an LE100 can both connect to the same system cable.
Q: Can I have Model LE300, LE200 and LE100 Line Extenders in the same system?
A.: Yes, but the LE100s must be connected only to other LE100s and the LE300s and L200s must be
connected together. Remember that the LE200 & LE300 fiber optic versions are NOT compatible
Q: What happens if the line balance is not installed?
A: A loud oscillation is heard on the audio line.
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Warranty
Equipment. GAI-Tronics warrants for a period of one (1) year from the date of shipment, that any
GAI-Tronics equipment supplied hereunder shall be free of defects in material and workmanship, shall
comply with the then-current product specifications and product literature, and if applicable, shall be fit
for the purpose specified in the agreed-upon quotation or proposal document. If (a) Seller’s goods prove
to be defective in workmanship and/or material under normal and proper usage, or unfit for the purpose
specified and agreed upon, and (b) Buyer’s claim is made within the warranty period set forth above,
Buyer may return such goods to GAI-Tronics’ nearest depot repair facility, freight prepaid, at which time
they will be repaired or replaced, at Seller’s option, without charge to Buyer. Repair or replacement shall
be Buyer’s sole and exclusive remedy. The warranty period on any repaired or replacement equipment
shall be the greater of the ninety (90) day repair warranty or one (1) year from the date the original
equipment was shipped. In no event shall GAI-Tronics warranty obligations with respect to equipment
exceed 100% of the total cost of the equipment supplied hereunder. Buyer may also be entitled to the
manufacturer’s warranty on any third-party goods supplied by GAI-Tronics hereunder. The applicability
of any such third-party warranty will be determined by GAI-Tronics.
Services. Any services GAI-Tronics provides hereunder, whether directly or through subcontractors,
shall be performed in accordance with the standard of care with which such services are normally
provided in the industry. If the services fail to meet the applicable industry standard, GAI-Tronics will
re-perform such services at no cost to buyer to correct said deficiency to Company's satisfaction provided
any and all issues are identified prior to the demobilization of the Contractor’s personnel from the work
site. Re-performance of services shall be Buyer’s sole and exclusive remedy, and in no event shall GAITronics warranty obligations with respect to services exceed 100% of the total cost of the services
provided hereunder.
Warranty Periods. Every claim by Buyer alleging a defect in the goods and/or services provided
hereunder shall be deemed waived unless such claim is made in writing within the applicable warranty
periods as set forth above. Provided, however, that if the defect complained of is latent and not
discoverable within the above warranty periods, every claim arising on account of such latent defect shall
be deemed waived unless it is made in writing within a reasonable time after such latent defect is or
should have been discovered by Buyer.
Limitations / Exclusions. The warranties herein shall not apply to, and GAI-Tronics shall not be
responsible for, any damage to the goods or failure of the services supplied hereunder, to the extent
caused by Buyer’s neglect, failure to follow operational and maintenance procedures provided with the
equipment, or the use of technicians not specifically authorized by GAI-Tronics to maintain or service the
equipment. THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE IN LIEU OF AND
EXCLUDE ALL OTHER WARRANTIES AND REMEDIES, WHETHER EXPRESS OR IMPLIED BY
OPERATION OF LAW OR OTHERWISE, INCLUDING ANY WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Return Policy
If the equipment requires service, contact your Regional Service Center for a return authorization number
(RA#). Equipment should be shipped prepaid to GAI-Tronics with a return authorization number and a
purchase order number. If the equipment is under warranty, repairs or a replacement will be made in
accordance with the warranty policy set forth above. Please include a written explanation of all defects to
assist our technicians in their troubleshooting efforts.
Call 800-492-1212 (inside the USA) or 610-777-1374 (outside the USA) for help identifying the
Regional Service Center closest to you.
(Rev. 10/06)
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