Patton electronics 1193RC User Manual

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USER MANUAL
MODEL 1193RC
G.703/G.704 to Single-mode Fiber Rack Mount Modem Card
Part# 07M1193RC-A Doc# 017141UA Revised 05/04/01
SALES OFFICE (301)975-1000 TECHNICAL SUPPORT (301)975-1007 http://www.patton.com
An ISO-9001
Certified
Company
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TTAABBLLEE OOFF CCOONNTTEENNTTSS
Section Page
1.0 Warranty Information.............................................................2
1.1 Radio and TV Interference
1.2 CE Notice
1.3 Service
2.0 General Information...............................................................4
2.1 Features
2.2 Description
3.0 Configuration .........................................................................5
3.1 Configure the Hardware DIP Switches
3.2 Configure the Rear Interface Card
4.0 Installation .............................................................................9
4.1 The Model 1001R14 Rack Chassis
4.1.1 The Rack Power Supply
4.1.2 Installing Model 1186RC Series Into the Chassis
4.2 Connect the G.703/G.704 Network
4.2.1 Connect Twisted Pair (120 Ohm) to G.703/G.704 Network
4.2.2 Connect Coax Cable to the G.703/G.704 Network
5.0 Operation ..............................................................................12
5.1 LED Status Monitors
5.2 Test Modes
5.2.1 Local Loopback
5.2.2 Remote Digital Loopback (RDL)
5.2.3 The V.52 Test Pattern Generator
Appendix A - Specifications........................................................17
Appendix B - Factory Replacement Parts and Accessories.......19
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11..00 WWAARRRRAANNTTYY IINNFFOORRMMAATTIIOONN
Patton Electronics warrants all Model 1193RC components to be free from defects, and will—at our option—repair or replace the prod­uct should it fail within one year from the first date of shipment.
This warranty is limited to defects in workmanship or materials, and does not cover customer damage, abuse or unauthorized modifi­cation. If this product fails or does not perform as warranted, your sole recourse shall be repair or replacement as described above. Under no condition shall Patton Electronics be liable for any damages incurred by the use of this product. These damages include, but are not limited to, the following: lost profits, lost savings and incidental or consequen­tial damages arising from the use of or inability to use this product. Patton Electronics specifically disclaims all other warranties, expressed or implied, and the installation or use of this product shall be deemed an acceptance of these terms by the user.
1.1 RADIO AND TV INTERFERENCE
The Model 1193RC generates and uses radio frequency energy, and if not installed and used properly—that is, in strict accordance with the manufacturer's instructions—may cause interference to radio and television reception. The Model 1193RC has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules, which are designed to provide reasonable protection from such interference in a commercial installation. However, there is no guarantee that interfer­ence will not occur in a particular installation. If the Model 1193RC does cause interference to radio or television reception, which can be determined by disconnecting the unit, the user is encouraged to try to correct the interference by one or more of the following measures: moving the computing equipment away from the receiver, re-orienting the receiving antenna and/or plugging the receiving equipment into a different AC outlet (such that the computing equipment and receiver are on different branches).
1.2 CE NOTICE
The CE symbol on your Patton Electronics equipment indicates that it is in compliance with the Electromagnetic Compatibility (EMC) directive and the Low Voltage Directive (LVD) of the European Union (EU). A Certificate of Compliance is available by contacting Technical Support.
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WARNING: This device utilizes a class IIIB laser device which emits invisible light. There is potential for eye damage if proper caution is not taken. The laser port output is classified as class IIIA due to attenua­tion in the fiber cable. Eye protection should be worn at all times when the unit is operational and the laser port is not connected. The laser assembly should not be modified in any way. The fiber cable should never be disconnected from the laser device for any reason. The laser's wavelength is specified in the range of 1280 nm to 1330 nm with a maximum power output of 800 uw. Eye protection should be specified to handle the stated wavelength. Never look directly into to the laser port.
1.3 SERVICE
All warranty and non-warranty repairs must be returned freight prepaid and insured to Patton Electronics. All returns must have a Return Materials Authorization number on the outside of the shipping container. This number may be obtained from Patton Electronics Technical Service at:
tel: (301)975-1007
email: support@patton.com
www: http://www.patton.com
Patton Electronics' technical staff is also available to answer any questions that might arise concerning the installation or use of your Model 1193RC. Technical Service hours: 8AM to 5PM EST, Monday
through Friday.
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22..00 GGEENNEERRAALL IINNFFOORRMMAATTIIOONN
Thank you for your purchase of this Patton Electronics product. This product has been thoroughly inspected and tested and is warrant­ed for One Year parts and labor. If any questions or problems arise during installation or use of this product, please do not hesitate to con­tact Patton Electronics Technical Support at (301) 975-1007.
2.1 FEATURES
· ITU G.703/G.704 (E1) transport over Single-mode fiber
· Full duplex operation over a single strand of fiber
· Single-mode fiber with max distance 50km (31 miles)
· Two fiber connection options available: FC or SC
· 120 Ohm (RJ-48C) and 75 Ohm (dual coax) G.703/G.704 termina­tions
· Clocking options: Internal, Network (G.703/G.704), or Receive Recover (fiber link)
· Optional AMI or HDB3 G.703/G.704 data coding
· Six front panel LED status indicators: Fiber line, E1 line, LOS, TM, ER, and NS
· Testing/troubleshooting tools: V.54 compliant local/remote loop­backs, V.52 compliant 511/511E test patterns
2.2 DESCRIPTION The Patton Electronics
Model 1193RC
extends E1 (G.703/G.704) service over Single-mode fiber. A pair of 1193RC Single-Mode Fiber Modems provides G.703/G.704 network "extension" between remote locations (See Figure 1 below).
The Model 1193RC is designed to transmit/receive G.703/G.704 data over one strand of fiber. The Model 1193RC allows transmission over Single-mode fiber with distances up to 50km (31 miles). The clocking options for the Model 1193RC include Internal, Network (from G.703/G.704 Network), or Receive Recovered clock (from fiber line).
The Model 1193RC also incorporates V.54 compliant local/remote loopbacks and V.52 compliant 511/511E test patterns. Front panel switches activate test patterns and loopbacks. LED status indicators monitor the fiber and G.703/G.704 links. The Model 1193RC is sup­plied with a 1001RCM703FC (with an FC connector) or a 1001RCM703SC (with an SC fiber connector) rear card.
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Figure 1. Network extension between remote locations
NOTE:
Packages received without an RMA number will not be
accepted.
G.703/G.704 G.703/G.704
Fiber Optic Line
Modem Modem
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33..00 CCOONNFFIIGGUURRAATTIIOONN
The Model 1193RC is equipped with eight DIP switches, which allow configuration of the unit for a wide variety of applications. This section describes location of the switches and explains all possible configurations.
3.1 CONFIGURE THE HARDWARE DIP SWITCHES
The 8 external dip switches are accessible from the underside of the Model 1193RC (See Figure 2 below).
Figure 3 shows the orientation of the DIP switches in the
“ON” and “OFF” positions.
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Figure 3. Close up of configuration switches
Figure 2. Underside of Model 1193RC, showing location of the DIP switches
Front
Rear
3.1.1 Configure the Model 1193RC
Switches S1 through S8 may be used to configure clocking modes and line coding. Default settings of the switches are shown in the table below. A description of the switch options follows the table.
Switches S1 and S2: Clock Mode
Use switches S1 and S2 to determine clock mode of the 1193RC. S1 S2 Setting Description On On Internal Transmit clock generated internally On Off Receive Recover Transmit clock derived from the Receive
data on the fiber side.
Off On Network Transmit clock derived from G.703/G.704
equipment interface
Off Off Internal use only
Switch S3 and S4: Line Coding Options
Use switches S3 and S4 to determine whether the G.703/G.704 line coding is HDB3 or AMI (for older telecommunications equipment). The line coding must be the same line coding prescribed by the NAP (Network Access Provider). Most applications will use HDB3.
High Density Bipolar 3 (HDB3): In HDB3 coding, the transmitter
deliberately inserts a bipolar violation when excessive zeros in the
data stream are detected. The receiver recognizes these special vio-
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Position Function Default Setting
S1
Clock Source
ON
Internal
S2
Clock Source
ON
Clock
S3
Line
OFF
HDB3
S4
Coding
OFF
S5 S6
Reserved for Future Applications N/A
S7 S8
OFF
ON
Note: The Model 1193RC units are intended to work in pairs. Set the clock modes for the Model 1193 units with one end of the link set for receive recover and the other end set for either internal or network.
OFF
S1
ON
OFF
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lations and decodes them as zeros. This method enables the net­work to meet minimum pulse density requirements. Use HDB3 unless AMI is required in your application.
Alternate Mark Inversion (AMI): AMI defines a pulse as a “mark,” a binary one, as opposed to a zero. In an E1 Network con­nection, signals are transmitted as a sequence of ones and zeros. Ones are sent as pulses, and zeros are sent as spaces, i.e., no pulse. Every other pulse is inverted from the previous pulse in polarity, so that the signal can be effectively transmitted. This means, however, that a long sequence of zeros in the data stream will cause problems, since the modem receiving the signal relies on the signal to recover the 2.048 Mbps clock.
If you must use AMI, ensure that the data terminal equipment con­nected to the unit provides a minimally acceptable pulse density. For this reason, there are advantages to using HDB3 instead. AMI coding does not inherently account for ones density. To meet this requirement, ensure that the data inherently meets pulse density requirements.
S3
S4 DTE Line Coding Off Off HDB3 On Off Internal use only Off On Internal use only On On AMI
Switches S5 through S8: Reserved
Switches S5 through S8 are reserved for future applications and
should be set to OFF.
3.2 Configure the Rear Interface Card
The Model 1193RC has two interface card options: the Model 1001RCM703SC (with SC fiber connector) and 1001RCM703FC (with FC fiber connector). See Figure 4, at upper right. Each of these inter­face cards support one fiber connector, two BNC and one RJ-48C line connectors.
The interface card for the Model 1193RC is shipped configured for use with a BNC connection to the G.703/G.704 Network. If your Network connection is using BNC, skip this section.
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NOTE: The 1193RC Series rear cards are specifically
designed to operate with the Model 1193RC function card and must not be swapped with other Patton function cards.
Model
1000RCM703SFC
Model
1000RCM703SC
RJ-45
TX
RX
Jumper Configuration
The rear interface card for the Model 1193RC has four internal jumpers: JP2, JP3, JP4 and JP5. These jumpers are used to match input/output impedance between the module and external line on the G.703/G.704 Interface. The jumper settings select either a BNC (75­ohm) or an RJ-48C (120-ohm) interface. Figure 5 below shows the top view of the printed circuit board (PCB) and the location of the jumpers.
Figure 5: Top view of 1193RC circuit board and location of jumpers
Note: Electronic equipment is sensitive to ESD (electrostatic dis­charge). When you change the internal jumpers on the 1001RCM703XX, use a grounding strap to avoid damages. For more information call Patton Technical Support (301) 975-1007.
JP3
JP2
JP4
JP5
RJ
TX
RX
The following is a description of the jumper settings and the interface selection:
1. For a 75-ohm connection (BNC/coax), insert all jumpers (default).
2. For a 120-ohm connection (RJ-48C/twisted pair), remove all jumpers.
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Powering Up Your 1001R14 Rack
The power supplies that come with your 1001R14 rack system are equipped with a power entry connector on the rear card. The power supplies are Hot-Swappable, so you are not required to remove the cards from the rack while applying power to the system.
4.1.2 Installing Model 1193RC Series Into the Rack Chassis
The Model 1193RC Series is comprised of a front card and a rear card. The two cards meet inside the rack chassis and plug into each other by way of mating 50 pin card edge connectors. Use the following steps as a guideline for installing each Model 1193RC Series into the rack chassis:
1. Slide the rear card into the back of the chassis along the metal rails provided.
2. Secure the rear card using the metal screws provided.
3. Slide the front card into the front of the chassis. It should meet the rear card when it’s almost all the way into the chas­sis.
4. Push the front card
gently
into the card-edge receptacle of the
rear card. It should “click” into place.
5. Secure the front card using the thumb screws.
NOTE: Please refer to the Model 1001RP14 Series User
Manual
AC & DC Rack Mount Power Supplie
s for fuse and
power card replacement information.
44..00 IINNSSTTAALLLLAATTIIOONN
This section describes the functions of the Model 1001R14 rack chassis, tells how to install front and rear Model 1193RC Series cards into the chassis, and how to connect to the G.703/G.704 Network and to fiber optic cable.
4.1 THE MODEL 1001R14 RACK CHASSIS
The Model 1001R14 Rack Chassis (Figure 6, below) has fourteen short range modem card slots, plus its own power supply. Measuring only 3.5” high, the Model 1001R14 is designed to occupy only 2U in a 19” rack. Sturdy front handles allow the Model 1001R14 to be extract­ed and transported conveniently.
4.1.1 The Rack Power Supply
The power supply included in the Model 1001R14 rack uses the same mid-plane architecture as the modem cards. The front card of the power supply slides in from the front, and the rear card slides in from the rear. They plug into one another in the middle of the rack. The front card is then secured by thumb screws and the rear card by conventional metal screws.
Figure 6: Model 1001R14 Rack Chassis with power supply
WARNING! There are no user-serviceable parts in the
power supply section of the Model 1193RC Series. Voltage setting changes and fuse replacement should only be performed by qualified service personnel. Contact Patton Electronics Technical Support at (301)975­1007 for more information.
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4.3 CONNECTING THE FIBER INTERFACE
The Model 1193RC is designed to be connected to another Model 1193RC or 1193. The Model 1193RC supports communication between G.703/G.704 equipment over Single-mode fiber at distances up to 50 km (31 miles). One modem can connect to another on the end of a single string of fiber optic cable.
To connect two Model 1193RCs, use one strand of 9/125 micron Single-mode fiber. The fiber connects to each Model 1193RC using either an FC or SC connector.
Figure 9 below shows a close-up of FC and SC connector types.
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Figure 9. Single-mode fiber connectors (FC and SC)
WARNING: Model 1193RC uses a Laser Diode to transmit invisible light into the fiber. Exposing eyes to this light can cause permanent damage. To prevent eye damage, DO NOT DIRECT DISCONNECTED FIBER OR FIBER CONNECTOR OF THE MODEM IN THE DIRECTION OF THE EYES.
4.2 CONNECTING TO THE G.703/G.704 NETWORK
There are two ways to connect to the G.703/G.704 Network. This section describes both options. After selecting the appropriate connec­tion, set the internal jumpers as described in section 3.2 of this manual.
4.2.1 Connecting theTwisted Pair (120 Ohm) to G.703/G.704 Network
The rear interface card for the Model 1193RC is equipped with a single RJ-48C jack option for connections to a G.703/G.704 Network. If your G.703/G.704 Network terminates via an RJ-48C, use the diagram below (Figure 7).
4.2.2
Connecting the Coax Cable to the G.703/G.704 Network
The rear interface card for the Model 1193RC is also equipped with dual female BNCs (TX and RX) for connection to a 75 ohm dual coax G.703/G.704 Network interface. If your G.703/G.704 Network terminates via dual coaxial cable, use the diagram below to make the proper con­nections. The connector pinout and signals are shown in Figure 8, below.
RX
(Data
FROM
G.703/G.704
Network)
TX
(Data
TO
G.703/G.704
Network)
Network
Figure 8: Connecting fiber cable to G.703/G.704 Interface
Figure 7. G.703/G.704 network interface
1 RX Data (TIP) 2 RX Data (RING) 3 (no connection) 4 TX Data (TIP) 5 TX Data (RING) 6 (no connection) 7 (no connection) 8 (no connection)
1 2 3 4 5 6 7 8
}
}
From Network
To Network
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55..00 OOPPEERRAATTIIOONN
Once the Model 1193RC is properly configured and installed, it should operate transparently. This sections describes power-up, LED status moni­tors, and the built-in loopback test modes.
5.1 LED STATUS MONITORS
The Model 1193RC features six front panel status LEDs that indicate the condition of the modem and communication link. Figure 10 below shows the front panel location of each LED.
Functions of LEDs are as follows:
Fiber The green Fiber LED indicates reliable data on the fiber side. E1 The green E1 LED indicates reliable data on the G.703/G.704
side.
LOS The red LOS indicates that syncronization between modems
has not been established. Blinking red LOS LED indicates the presence of coding errors.
NS The red NS LED indicates that the signal on the fiber side is
too weak to be detected. That could be due to any of the following reasons:
- break in the fiber optic cable
- length of the fiber optic cable exceeds the maximum distance
- problem with Fiber LED.
ER Flashing red ER LED indicates errors in 511 test pattern TM The yellow TM LED indicates that the modem is in a test mode
(Local/Remote Loopback or 511/511E test pattern). Opaque LED indicates normal operation.
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5.2 POWER-UP
After both the local and remote Model 1193RCs are powered up, a synchronization process will occur to establish a link. The synchro­nization process should take approximately 5 seconds. Any time one of the Model 1193RCs lose power (i.e., in a lightning storm), the local and remote units will re-synchronize before they can resume data transmis­sion.
When the local and remote Models 1193RC have established a link
and are passing reliable data, the following LED conditions will exsit:
· Fiber = GREEN
· E1 = GREEN
· LOS = OFF
· NS = OFF
· ER = OFF
· TM = OFF
5.2 TEST MODES
The following section describes the test patterns and loopbacks used in the Model 1193RC. The Model 1193RC offers V.54 compliant local/remote loopback tests, plus a built-in V.52 BER test pattern gener­ator to evaluate the condition of the modems and the communication link. These tests can be activated physically from the front panel.
5.2.1 Local Loopback
The local loopback test checks the operation of the local Model 1193RC, and is performed separately on each unit. The following sec­tion describes how to perform a local loopback test between the Network and a local connection.
Any data sent to the local Model 1193RC in this test mode will be echoed (returned) to the user (see Figure 11 below). If two Model 1193RC units are linked when the LAL is activated, data sent from the remote modem will also be looped back to the remote terminal equip­ment.
To test the local connection, follow these steps:
1. Activate LAL by moving the front panel toggle switch RIGHT to "Local". Once the Local Loopback is activated, the Model 1193RC trans-
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Figure 11. Local loopback diagram
G.703/G.704
Network
Figure 10. Front Panel of 1193RC
S
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mit output will be connected to its own receiver. The TM LED will light up.
2. Perform a BER (Bit Error Rate) test on each unit using a separate BER tester. If the BER test equipment indicates no faults but the data indicates a fault, follow the manufacturer's checkout procedures for the data terminal. Also check the interface cable between the terminal and the Model 1193RC. The BER test can also be performed using a built­in 511/511E pattern generator. (See section 5.2.3 on how to use the built-in 511/511E pattern generator.)
3. Upon completion of the LAL test, return the front panel switch to NORMAL position. The TM LED should turn off.
5.2.2. Remote Digital Loopback (RDL)
The Remote Digital Loopback test checks the performance of both the local and remote Models 1193RC, and the communication link between them. In this test, any characters sent from the originating device to the remote unit will be returned (see figure 12). Any data sent to the remote unit from the remote DTE wil be ignored.
To perform a RDL test, follow these steps:
1. Activate RDL by moving front panel toggle switch LEFT to "Remote". The TM LED on both local and remote units will light up.
2. Perform a BER (Bit Error Rate) test on the system, using BER tester on the local end. BER test can also be performed using built-in 511/511E pattern generator. (See section 5.2.3 on how to use the built­in 511/511E pattern generator.)
3. If the BER test equipment indicates a fault and the Local Analog Loopback test was successful for both Model 1193RCs, there may be a problem with the line between the units.
4. Upon completion of the RDL test, return the front panel switch to NORMAL position. The TM LED should turn off on both local and remote units.
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5.2.3. The V.52 Test Pattern Generator
To use the V.52 BER test in conjunction with the Local or Remote Loopbacks, follow these instructions:
1. Locate the "511/511E" toggle switch on the front panel of the Model 1193RC and move it RIGHT. This activates the V.52 BER test mode and transmits a "511" test pattern into the loop. If any errors are pres­ent, the local modem's red "ER" LED will blink intermittently.
2. If the above test indicates no errors, move the V.52 toggle switch LEFT, activating the "511/E" test with errors present. If the test is work­ing properly, the local modem's red "ER" LED will blink approximately once every 2 seconds. A succesful "511/E" test will confirm that the link is in place, and that the Model 1193RC’s built-in "511" generator and detector are working properly.
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Figure 12. Remote loopback diagram.
G.703/G.704
Network
Note: When set for Network Clock Mode, the unit will derive its timing from the G.703/G.704 interface. It expects its clock will come from the G.703/G.704 interface. Failure to connect to the G.703/G.704 may result in bit errors during a 511 or 511/E test.
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AAPPPPEENNDDIIXX AA
PATTON ELECTRONICS SINGLE-MODE FIBER RACK MOUNT
MODEM WITH G.703/G.704 INTERFACE
SPECIFICATIONS
Clocking Modes: Network (G.703/G.704), Internal, Receive
Recover
Line Rate: 2048 kbps Diagnostics: V.52 compliant (511/511E) pattern generator
and detector with error injection mode. Remote Loopback (toward fiber line) and local loopback (toward G.703/G.704 Net­work) controlled by a single front panel switch
LED Status: The following LEDs are displayed on the
front panel: Fiber: The green Fiber LED indicates reli­able data on the fiber side E1: The green E1 LED indicates reliable data on the G.703/G.704 side LOS: The red LOS indicates that syncro­nization between modems has not been established. Blinking red LOS LED indicates the presense of coding errors. NS: The red NS LED indicates that the sig nal on the fiber side is too weak to be detected. ER: Flashing red ER LED indicates errors in 511 test pattern TM: The yellow TM LED indicates that modem is in a test mode (Local/Remote Loopback or 511/511E test pattern). Opaque TM LED indicates normal operation.
Configuration: Externally accessible dip switches Compliance: FCC Part 15, CE, CTR12 Transmission Line: Single fiber Line Coding: 8B10B Line Interface: Transformer coupled, 1500 VAC isolation Fiber Physical Connection: One string of 9/125 micron fiber with FC
or SC connectors
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GG..770033//GG..770044 SSppeecciiffiicc
Interface: Female Dual Coaxial 75 ohm or
Female RJ-48C 120 ohm
Line rate:
2.048 Mbps
Line coding: AMI or HDB3 (HDB3 is the default) Isolation: 1500 Vrms Physical Connection: pin 1 Rx Data +
pin 2 Rx Data ­pin 4 Tx Data ­pin 5 Tx Data ­pins 3, 6, 7, 8 no connection
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AAPPPPEENNDDIIXX BB
PATTON ELECTRONICS MODEL 1193RC
FACTORY REPLACEMENT PARTS
AND ACCESSORIES
Patton Electronics Model #
Description
1193................................Single-mode fiber optic modem
1193RC.................................Single-mode fiber rack card modem
48V-PSM.........................DC Power Supply Module
08055DCUI .....................100-240VAC (+5V ±5% reg. DC/2A)
Universal Input Adapter
0805EUR ........................European Power Cord CEE 7 (“A”)
0805UK ...........................United Kingdom Power Cord (“D”)
0805US ...........................American Power Cord (“K”)
0805AUS.........................Australia/New Zealand Power Cord (“C”)
0805DEN.........................Denmark Power Cord (“E”)
0805FR............................France/Belgium Power Cord (“F”)
0805IN.............................India Power Cord (“G”)
0805IS.............................Israel Power Cord (“H”)
0805JAP..........................Japan Power Cord (“J”)
0805SW...........................Switzerland Power Cord (“L”)
07M1193RC....................User Manual
1001RCM703SC.............interface card with SC fiber connector
1001RCM703FC.............interface card with FC fiber connector
1001RPEM-RAC.............120/240V Rear Power Entry Module
1001RPSM-RUI...............120/240V Front Power Supply Module
1001RPEM-RDC..............DC Rear Power Entry Module
1001RPSM-R48A.............48V Front Power Supply Module
1001R14P.........................Rack 14 Slot 2U Chassis Only
1001R14P/R48V...............Rack 14 Slot 2U w/Dual Universal
Input 48VDC Power Supplies
1001R14P/RUIA...............Rack 14 Slot 2U w/Dual Universal
Input 90-260VAC Power Supplies European Power Cord
1001R14P/RUIC...............Rack 14 Slot 2U w/Dual Universal
Input 90-260VAC Power Supplies Austrialia Power Cord
1001R14P/RUID...............Rack 14 Slot 2U w/Dual Universal
Input 90-260VAC Power Supplies UK Power Cord
1001R14P/RUIG...............Rack 14 Slot 2U w/Dual Universal
Input 90-260VAC Power Supplies India Power Cord
1001R14P/RUIK................Rack 14 Slot 2U w/Dual Universal
Input 90-260VAC Power Supplies US Power Cord
AAPPPPEENNDDIIXX BB ((CCOONNTTIINNUUEEDD))
0516FPB1............................Single Width Blank Front Panel
0516FPB4............................4-Wide Blank Front Panel
0516RPB1............................Single Width Blank Rear Panel
0516RPB4............................4-Wide Blank Rear Panel
056S1...................................Set of 16 #4 pan head screws/washers
Copyright © 2001
Patton Electronics Company
All Rights Reserved
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