Canoga Perkins 2240 User Manual

M o d e m sCanoga Perkins2270Fiber Optic ModemUser Manual

10Canoga Perkins1.3 2201 Rack ChassisThe 2201 Rack Chassis is designed to accommodate up to ten 2200 series modems.It offers a variety of features, i

112270 Fiber Optic Modem1.7 Loss BudgetThe maximum possible distances with either standard or long distance versions i

12Canoga Perkins• Are you using the correct clock mode (internal/external) for synchronous trans-mission?• Have the modems mode and rate switches bee

132270 Fiber Optic ModemThese settings give minimum and maximum losses for each of the four possible switch combina-tio

14Canoga PerkinsTable 1-C. 2270 Switch FunctionsLOOP TEST switch on Front Panel (described in Section 5, Troubleshooting).LOC position will activat

152270 Fiber Optic ModemTable 1-D. 2270 Jumper FunctionsSIGNAL GROUND controls connecting circuit ground to the chassi

16Canoga PerkinsChapter 2 - Installation2.1 Unpacking the UnitEach 2200 Series Modem is shipped factory tested, and packed in a protective carton. U

172270 Fiber Optic ModemRepeat this procedure for the second modem using the center cover retaining screw on the rights

18Canoga PerkinsThe outside case of the DC-powered modems will run warmer to the touch than the correspondingAC-powered units. This is because the cov

192270 Fiber Optic ModemFigure 2-2.2201 Rack ChassisFront Viewwith ModemsInstalledTable 2-A. Operating Mode Selections

2Canoga PerkinsNotice!Canoga Perkins has prepared this manual for use by customers and Canoga Perkins personnelas a guide for the proper installation,

20Canoga Perkins2.7.3 Asynchronous OperationThe 2270 can operate in the data-only asynchronous mode by setting the Clock Mode to INTER-NAL and the Cl

212270 Fiber Optic ModemWhen the modem is the source of the transmit clock, there is a finite time delay before that cl

22Canoga PerkinsTo accomplish this, the SCT POL jumper needs to be changed. The position set at the factory isNORM, which assumes a negligible delay i

232270 Fiber Optic ModemChapter 3 - Data Interfaces3.1 Electrical Data InterfacesA variety of interfaces are availabl

24Canoga PerkinsRS-232C RS-423/CCITTpin mnem signal name mnem signal direction1 FG Frame Ground FG 101 n.a.2 TXD Transmit Data SD 103 to modem3 R

252270 Fiber Optic ModemTable 3-C. RS-499 (RS-422) Signals and Pin Assignmentspin EIA signal name CCITT signal directi

26Canoga Perkins3.4 RS-530 Interface Model -R30The EIA RS-530 interface uses RS-422 (balanced) electrical signals for all interface circuits (data,cl

272270 Fiber Optic ModemTable 3-E. RS-530 Jumper OptionsJumper OptionsCHASSIS GND Jumper (*)100 Ohm position: Connects

28Canoga Perkins3.5 T1/E1 InterfacesThere are only two versions of T1/E1 interfaces available. The Transparent Bipolar models -B1, B2and B3 are compa

292270 Fiber Optic ModemTable 3-G. Line Build Out SettingsSwitch Positions for 4Bx12345MODE OFE1 T1 LEN0 LEN2 LEN1 OPER

32270 Fiber Optic ModemCaution!This product may contain a laser diode emitter operating at a wavelength of 1300 nm - 1

30Canoga Perkins3.5.2 DS1 / T1 Model -T1This interface is compatible with AMI-coded T1 data only. If line coding is other than AMI, such asB8ZS, then

312270 Fiber Optic Modem3.7 CCITT V.35 Interface Model -35This interface is compatible with CCITT recommendation V.35

32Canoga Perkins3.8 Programmable Buffered Interface  Model P53The Model P53 Interface Module employs an RS-422 electrical interface with a DB-25 inte

332270 Fiber Optic ModemFigure 3-3.AvailableStrapping Optionsfor ProgrammableBuffered Interface

34Canoga PerkinsFigure 3-4.Board Layout forProgrammableBuffered InterfaceTable 3-I. Delay Times for Programmable Buffered InterfaceSW1 Position Dela

352270 Fiber Optic ModemThis interface has strap option jumpers to configure the RLSD Output at J1-8/10 (DB-25) to sup-

36Canoga Perkins3.8.1 Generic InterfaceThis interface (see Figure 3-5) conforms to the EIA RS-530 pinout and signal flow for a DCE device.Figure 3-5.P

372270 Fiber Optic Modem3.8.2 External StationThe External Station is used when an external station clock is providing

38Canoga Perkins3.8.3 InternalThe internal function is used when network equipment is set for Eternal Timing (see Figure 3-7).When connecting KG or KI

392270 Fiber Optic Modem3.8.4 ExternalThe External function is used when network equipment is set for Network or Intern

4Canoga PerkinsTable of ContentsChapter 1 - General ...81.1 Eq

40Canoga Perkins3.8.5 DTE AdapterThis adapter is supplied with the P53 interface and should be used when connecting to a DCEdevice. This allows the us

412270 Fiber Optic Modem3.8.6 Legacy AdapterThis adapter is provided with the P53 interface and should be used if preex

42Canoga Perkins3.9 High-Speed RS-422/Mil-Std 188-114C InterfacesThere are three High-Speed RS-422 interface models (-TW, -T22 and -D22) and three Hi

432270 Fiber Optic ModemTable 3-M. Jumper Strap OptionsJUMPER DESCRIPTION FACTORY CONFIGURATION ID TW TW8 T22 T88 D22

44Canoga Perkins3.9.2 Model -TW8The signaling used on this interface is Mil-Std 188-114C. Four TwinAx connectors (BJ-77 type) areused for the physic

452270 Fiber Optic ModemFigure 3-12.Five TwinAxConnectors(BJ-77 Type)Table 3-N. Models D22 and D88 Connector Pin Assign

46Canoga Perkins3.10 Interface ReconfigurationFigure 3-13 shows how the interface circuit board fits into the larger main modem board opening.A heade

472270 Fiber Optic ModemChapter 4 - Modem Operation4.1 Modem OperationThough the actual electronic connection betwe

48Canoga PerkinsFigure 4-2.Typical HighSpeed 2270ModemApplication4.3 Transmit SectionThe data and clock signals input to the interface are converted

492270 Fiber Optic Modem4.6 Bit Count IntegrityThe 2270s design enables a much better integrity for the clock than th

52270 Fiber Optic Modem3.5.2 DS1 / T1 Model -T1 ...

50Canoga PerkinsIf Data Carrier Detect (DCD) is present as an interface output, it is asserted if the remote modemis sending valid optical carrier to

512270 Fiber Optic ModemChapter 5 - Troubleshooting5.1 Diagnostic ProceduresThe following procedures are intended for

52Canoga Perkins Jumpers Local Modem Remote ModemAlt B Alt A Normal Mode *1 Alternate Mode *2 Normal Mode *1 Alternate Mode *2OFF OFF Bi-

532270 Fiber Optic Modem5.2.1 Local Loopback TestWhen activated, the local loopback test will cause all data transmiss

54Canoga Perkins5.2.2 Remote Loopback TestTo activate the Remote Loopback Test, set the Loop switch to REM and, after the Rx DataIndicator begins to

552270 Fiber Optic Modem5.2.3 System Loopback TestThis section describes the System Test Remote Loopback test featur

56Canoga PerkinsChapter 6 - Diagnostic Procedures6.1 2270/2201 Diagnostic ProceduresThe following diagnostic procedures should be followed to test

572270 Fiber Optic ModemStep Symptom Possible Cause(s) Action2 (cont.) Perform the following optical loss calculation:•

58Canoga PerkinsChapter 7 - Specifications7.1 Diagnostic Indicators and ControlsSystem Test, Optical Power, Rx/Tx, Power On, Power Alarms (2201)7.2

592270 Fiber Optic Modem7.3 System ElectricalInterfaces Supported RS-232C/RS-423, RS-422, V.35,DS1/T1, TTL/BNC, Progra

6Canoga PerkinsList of FiguresFigure Page1-1 Front Panel Mode/Rate Switch ...

60Canoga PerkinsOperating EnvironmentTemperature 0 to 50°CHumidity 0 to 95% (non-condensing)MTBF 62,500 hours (calculated)7.5 2270 Fiber Optic Modem

612270 Fiber Optic ModemA.1 Customer Service Department RepairWarrantyRepairs performed by the Canoga Perkins Customer

62Canoga PerkinsA.4 WarrantyElectronic ProductsCanoga Perkins warrants to the Customer that all goods sold to the Buyer will perform inaccordance with

72270 Fiber Optic ModemList of TablesTable Page1-A Available Modem Controls ...

8Canoga PerkinsChapter 1 - General1.1 Equipment DescriptionThe 2270 is a high-speed modem for full-duplex operation over fiber optic cable. It operat

92270 Fiber Optic ModemFigure 1-1.Front PanelMode/RateSwitchThe rate setting determines what rate the modem will operat