Canoga Perkins 2240 Specifications

ModemsModel 2240Fiber Optic ModemUsers Manual

10Canoga PerkinsList of Tables1-A Control Leads Available... 122-A Link Loss Range ...

100Canoga PerkinsTable 6-A. Link Loss Range6.3 Fiber Optic Diagnostic ProcedureIf the Loopback Test is successful, and the modems still do not functi

2240 Fiber Optic Modem1017. Specifications7.1 Optical InterfaceComposite Error Rate: 1 in 1010 or betterFiber Optic Cable Compatibility: 50 and 62.

102Canoga Perkins7.2 System ElectricalInterface Connector:Interface Connector TypeRS-232C / 423 / 530 female DB-25Programmable RS-530 (P53) female DB

2240 Fiber Optic Modem103Power Requirement:Standalone 115 VAC +10% @ 0.22 Amps115/230 VAC + 10% switchable@ 0.11 Amps ,47 to 63 Hz-48VDC; 0.5 Amps (m

104Canoga Perkins7.5 2240 Fiber Optic Modem Configurations 2240-S-XXX-XX-XX-X S = STANDALONE 2240-R-XXX-XX-XX-0 R = RACKMOUNTPOWER OPTIONS0

2240 Fiber Optic Modem105Appendix ALimited WarrantyA.1 ProductsCanoga Perkins warrants that, at the time of sale, its products will be free from defec

106Canoga PerkinsPERKINS' MAXIMUM LIABILITY SHALL NOT EXCEED AND CUSTOMER'S REM-EDY IS LIMITED TO EITHER (i) REPAIR OR REPLACEMENT OF THE DE

2240 Fiber Optic Modem111. Description1.1 2240 ModemThe 2240 is a full-featured modem for full-duplex operation over fiber optic cable.The 2240 is a

12Canoga PerkinsVarious configurations of the 2240 provide local and end-to-end modem controlsincluding those listed in Table 1-A.Table 1-A.Control L

2240 Fiber Optic Modem131.2 2201 Rack ChassisThe 2201 Rack Chassis (see Figure 1-2) is designed to accommodate up to ten 2200series modems, except fo

14Canoga Perkins1.4 2200R Series Redundant CardThis card allows a single electrical interface to be shared between two modemsinstalled in a 2201 Rack

2240 Fiber Optic Modem15Figure 1-4.2240 FunctionalBlock Diagram

16Canoga PerkinsThe modem functions as a 10-channel multiplexer. The following discussionassumes an 8.19 MHz composite. Lower composite speeds resul

2240 Fiber Optic Modem17The heart of the 2240 transmitter is a ten-channel multiplexer. This multiplexer takesthe clock, data and control lead inputs

18Canoga Perkins1.6 Loss BudgetThe maximum possible transmission distance is dependent on the overall powerloss over the fiber optic link. This is c

2240 Fiber Optic Modem192. Installation and Setup2.1 InstallationInstallation for the 2240 Fiber Optic Modem includes unpacking the unit, andconside

2Canoga PerkinsCaution!This product may contain a laser diode emitter operating at a wavelength of 1300 nm - 1600 nm. Useof optical instruments (for e

20Canoga Perkins2.1.3 Rack-Mount Modem InstallationThe 2201 Rack Chassis is designed for installation in a standard 19-inch wideequipment rack. Tabs

2240 Fiber Optic Modem212.1.5 2202 Modem Shelf InstallationThe 2202 Modem Shelf is mounted in an equipment rack. Two 2200 Series standalonemodems ma

22Canoga Perkins2.2 SetupThe setting up of the 2240 Modem includes the two-section HI / LO optic powerswitch, internal control switches and the signa

2240 Fiber Optic Modem232.2.2 Internal Control SwitchesAn 8-position DIP switch located on the modem board provides access for internalcontrol option

24Canoga Perkins2.2.2.1 Carrier Detect (CD) Signal OptionsThere are two switches on the internal switch block which control the response ofthe CD sig

2240 Fiber Optic Modem252.2.2.2 Internal Clock Option SwitchesThere are two switches on the Internal switch block which affect the operation ofthe Cl

26Canoga Perkins2.2.3 Signal Ground StrapThe jumper selects whether chassis ground is connected directly to signal ground(CHASSIS position) or signal

2240 Fiber Optic Modem272.2.5 EXTRA CLOCK JumperThis two-pin jumper (W26, labeled XTCLK), in conjunction with the enhancedinterfaces (- 422, - 436 an

28Canoga PerkinsCustomer's T1CSU/DSU PLL TX

2240 Fiber Optic Modem293. Mode and Rate Selection3.1 Operating Mode / Data Rate SelectionThe 2240 has eight clock operating modes: seven modes for

2240 Fiber Optic Modem3Notice!Canoga Perkins has prepared this manual for use by customers and Canoga Perkins person-nel as a guide for the proper ins

30Canoga PerkinsTable 3-A.Mode SwitchPositionsFor many modes, the specific data rate must be selected. The data rate is selectedby setting four switc

2240 Fiber Optic Modem313.2 External Clock ModesThe external clock modes are used when it is necessary to have the DTE provide thetransmit clock or w

32Canoga PerkinsNOTE: The pulse distortion is 37% of the bit period at a data rate of1.544 Mbps. When using this operating mode, it is important to

2240 Fiber Optic Modem33Table 3-D.Group 4 InternalClock Rate DivideRatio3.3.1 Standard Internal Clock Rates (Groups 1, 2 and 3)If the data rate appear

34Canoga PerkinsTable 3-E.Standard Oscillatorand Divide Factors

2240 Fiber Optic Modem353.4 Slave Clock Mode - Mode 5The Slave Clock Mode is used to provide a clock to the DTE which is identical to theclock recei

36Canoga PerkinsFigure 3-2.Typical Tail CircuitImplementationNOTE: If the customer's DCE does not support TT (or equivalent)lead, a buffered in

2240 Fiber Optic Modem373.6 Consideration of Propagation DelaysWhenever the modem is sending a transmit clock to the DTE, it is important tounderstan

38Canoga Perkins3.7 Internal Clock Option SwitchesThere are two switches on the Internal switch block which affect the operation ofthe Clock circuits:

2240 Fiber Optic Modem39INTERNAL OPTIONSWITCHESFACTORYSETOFFONOFFOFFONOFFOFFONOFF ONCD/DCDCD/SYNCALM/CHANALM/LOCALM/REMALM/INVCLK/EXTTBL/NORMINTERNALO

4Canoga PerkinsModel 2240 Fiber Optic Modem

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2240 Fiber Optic Modem414. Data Interfaces4.1 Data Interfaces OverviewA variety of interfaces are available for the 2240 Modem (see following listi

42Canoga Perkins4.2 RS-423 / 232D Model 432NOTE: The maximum data rate for this interface, 153.6 kbps, islimited by the interface driver slew rate.Th

2240 Fiber Optic Modem43Data Set Ready (DSR) and Test Mode (TM) are local status leads and follow the functionsdescribed in RS-232D. DSR typically in

44Canoga Perkins4.2.1 RTS_BIAS JumperThe RTS_BIAS jumper controls the state that RTS floats to when there is no signaldriving the RTS pin. The OFF p

2240 Fiber Optic Modem454.2.4 DSR JumperThe DSR jumper controls the behavior of the DSR signal. The EIA positioncauses the DSR to turn OFF in certai

46Canoga PerkinsTable 4-B.RS-449 Pinouts* The extra clock is an enhancement added to -422 interfaces. Any -422interface card outfitted with this cap

2240 Fiber Optic Modem47The SD, RD, ST, RT and TT pins carry the primary data and clock signals(conforming to the RS-449 and RS-422 standards). In ad

48Canoga PerkinsLocal Loopback (LL) and Remote Loopback (RL) are loopback control leads andperform the same functions as the 2240 front panel LOOP swi

2240 Fiber Optic Modem494.3.4 DM JumperThe DM jumper controls the behavior of the DM signal. The EIA position turnsDM OFF when the far-end 2240 mode

2240 Fiber Optic Modem5Table of Contents1. Description ... 111.1 2240 Modem...

50Canoga Perkins4.4 RS-530 Interface Model 430NOTE: The -430 interface supersedes the previous -R30 interface for2240 applications. The -430 interf

2240 Fiber Optic Modem51Table 4-C.RS-530 Signals andPin AssignmentsTwo end-to-end control leads are provided as part of this interface. An input toRT

52Canoga Perkins4.4.1 RTS_BIAS JumperThe RTS_BIAS jumper controls the state that RTS floats to when there is no signaldriving the RTS pin. The OFF p

2240 Fiber Optic Modem534.4.5 SCT SwitchThis slide switch selects whether the SCT leads are outputs (OUT position) orinputs (IN position). The OUT p

54Canoga Perkins4.4.8 CTS (A) JumperThis jumper selects the electrical characteristic of the CTS (A) lead. In theNORM position, the CTS (A) is a nor

2240 Fiber Optic Modem554.5 CCITT V.35 (ISO 2593-1993) Model 436This interface complies with CCITT Standard V.35 and ISO 2593-1993. Electricalcharact

56Canoga PerkinsTable 4-E.CCITT V.35PinoutsFunction Pin CCITT Direction(A/B) Circuit NumberShield A 101 -Signal Ground B 102

2240 Fiber Optic Modem57Table 4-F.Pinout Differences(-435 vs. -436)NOTE: The previous V.35 interface, Model -435, did not conform tothe ISO 2593 pino

58Canoga PerkinsLocal Loopback (LL) and Remote Loopback (RL) are loopback control leads andperform the same functions as the 2240 front panel LOOP swi

2240 Fiber Optic Modem594.5.4 DSR JumperThe DSR jumper controls the behavior of the DSR signal. The CCITT turns DSROFF when the far-end 2240 modem h

6Canoga Perkins3. Mode and Rate Selection ... 293.1 Operating Mode / Data Rate Selection ...293.2 Exter

60Canoga Perkins4.6 Multi-Channel Interfaces4.6.1 RS-449 / RS-423 Model MC1This interface includes two physical connectors. The RS-449 / 422 uses

2240 Fiber Optic Modem614.6.1.1 RS-449 / DC-37 InterfaceThis interface complies with EIA Standard RS-449. Electrical characteristics complywith RS-4

62Canoga PerkinsThe SD, RD, ST, RT and TT pins carry the primary data and clock signals(conforming to the RS-449 and RS-422 standards). In addition,

2240 Fiber Optic Modem634.6.1.1.1 RS_BIAS JumperThe RS_BIAS jumper controls the state that RS floats to when there is no signal driv-ing the RS pin.

64Canoga Perkins4.6.1.1.4 CH_GND JumperThe jumper selects whether chassis ground is connected directly to signal ground (SHORTposition) or through a

2240 Fiber Optic Modem65There are six end-to-end control lead pairs. They are listed with the input signallisted first.TD to RDSTD to SRDDTR to RISRTS

66Canoga Perkins4.6.2 V.35 / RS-423 Model MC2This interface includes two physical connectors. The CCITT V.35 uses a 34-pin,female Winchester connec

2240 Fiber Optic Modem674.6.2.1 CCITT V.35 / MRC 34 InterfaceThis interface complies with CCITT Standard V.35 and ISO 2593-1993. Electri-cal charact

68Canoga PerkinsTable 4-K.CCITT V.35Pinouts for MC2Function Pin CCITT Direction(A/B) Circuit NumberShield A 101 -Signal Ground B 102

2240 Fiber Optic Modem69The previous V.35 interface Model MC2 / 435, did not conform to the ISO 2593pinout and was the predecessor to the MC2 / 436 in

2240 Fiber Optic Modem74.4.3 DSR Jumper ... 524.4.4 CHASSIS_GND Jumper ...

70Canoga Perkins4.6.2.1.2 DCD JumperThe DCD jumper determines the source of the DCD output. In the CTRL posi-tion, the DCD output functions as the o

2240 Fiber Optic Modem714.6.2.2 RS-423 / DB-25 InterfaceNOTE: The maximum data rate for this interface is 9.6 Kbps.This interface is electrically com

72Canoga PerkinsTable 4-M.ConfigurationSwitch SettingsThere are three different types of interface connectors, and each is identified bythe number at

2240 Fiber Optic Modem73This interface performs jitter attenuation of the transmit line input signal. It is alsodesigned to propagate an all "1&

74Canoga PerkinsT1 2240(mode 7)2240(mode 5 Slave)V.35RxTxDataClk TxDataClk Rx4B1436Figure 4-2.Transparent BipolarInterface ConnectorsFigure 4-3.Exam

2240 Fiber Optic Modem754.8 TTL / BNC Interface Model -BNThis model uses BNC (bayonet) connectors for the physical interface. The electricalsignal c

76Canoga Perkins4.9 Programmable Buffered Interface / Model P53Signal Full Name DirectionTxD Transmit Data To ModemRxD Receive Data From ModemSCR S

2240 Fiber Optic Modem77A wire wrap header (J3) provides the means to interconnect these resourcestogether with the standard modem transmit and receiv

78Canoga PerkinsFigure 4-5.Available StrappingOptions forProgrammableBuffered InterfaceKG SwingJumpersInternalClock FromModemRx DataTx ClockTx DataMod

2240 Fiber Optic Modem79Table 4-P.Delay Times forProgrammableBuffered InterfaceFigure 4-6.Board Layoutfor ProgrammableBuffered InterfaceW8 W9W7W14W13W

8Canoga Perkins4.9.2 Generic Interface ... 814.9.3 External Station ...

80Canoga PerkinsTable 4-R.StrapConfigurationsfor RLSD (CD)OutputThe W1 / W2 strap connects chassis ground to signal ground (W2 position), connects cha

2240 Fiber Optic Modem814.9.2 Generic InterfaceFigure 4-7 illustrates basic DCE configurations, which bypass all the "feature"circuits prov

82Canoga Perkins4.9.3 External StationThe External Station is used when an external station clock is providing timing (seeFigures 4-8 and 4-9). When

2240 Fiber Optic Modem834.9.4 InternalThe internal function is used when network equipment is set for Eternal Timing (seeFigures 4-10 and 4-11). Wh

84Canoga Perkins4.9.5 ExternalThe External function is used when network equipment is set for Network or Inter-nal Timing (see Figures 4-12 and 4-13)

2240 Fiber Optic Modem854.9.6 DTE AdapterThis adapter is supplied with the P53 interface and should be used when connecting toa DCE device. This all

86Canoga Perkins4.9.7 Legacy AdapterThis adapter is provided with the P53 interface and should be used if preexistingcabling was installed for use wi

2240 Fiber Optic Modem874.10 High-Speed RS-422 / Mil-Std 188-114C InterfacesThere are three High-Speed RS-422 interface models (TW, T22 and D22) an

88Canoga PerkinsSCT should be selected if the modem is set for Internal or Slave Clock mode.SCTE should be selected if the modem is set for External C

2240 Fiber Optic Modem89Table 4-U.Jumper StrapOptionsJUMPER DESCRIPTION FACTORY CONFIGURATION ID TW TW8 T22 T88 D22 D88W3 / W4*

2240 Fiber Optic Modem9List of Figures1-1 Model 2240 Modem ...

90Canoga Perkins4.10.2 Model TW8The signaling used on this interface is Mil-Std 188-114C. Four TwinAx connec-tors (BJ-77, 3-lug) are used for the ph

2240 Fiber Optic Modem914.10.3 Model T22The signaling used on this interface is RS-422A. Five TwinAx connectors (BJ-77,3-lug) are used for the phys

92Canoga PerkinsTable 4-V.Models D22 andD88 ConnectorPin Assignments*

2240 Fiber Optic Modem934.11 Interface ReconfigurationFigure 4-18 illustrates how the interface circuit board fits into the larger mainmodem board o

94Canoga Perkins4.12 Standalone ReconfigurationTo access the circuit board on a standalone unit, the enclosure cover must first beremoved by loosenin

2240 Fiber Optic Modem955. Troubleshooting5.1 Diagnostic ProceduresThe following procedures are intended for use in the event of a system failure, n

96Canoga PerkinsNOTE: Interface control of the loopback tests is only supported on thefollowing modular interfaces: RS-423 / RS-232C, RS-449, RS-5

2240 Fiber Optic Modem976. Diagnostic Procedures6.1 2240 / 2201 Diagnostic ProceduresThe following diagnostic procedures should be followed to test

98Canoga Perkins6.2 Loopback Test Diagnostic ProcedureStep Symptom Possible Cause(s) Action1 No Sync Indication. Defective fiber optic Continue to t

2240 Fiber Optic Modem99Step Symptom Possible Cause(s) Action3 Cable loss exceeds Defective Repair ormodem loss budget. F/O cable replace defectivecab