Document Outline

• Table of Contents
• Chapter 1 - Description
  • 1.1 2240 Modem
    • 1.1.1 Functions, LEDs and Switches
  • 1.2 2201 Rack Chassis
  • 1.3 2202 Modem Shelf
  • 1.4 Modem Operation
    • 1.4.1 General
    • 1.4.2 System Test and Diagnostics
    • 1.4.3 Transmit Section
    • 1.4.4 Receive Section
    • 1.4.5 Expanded Interface Control Channels
    • 1.4.6 Expanded Interface Auxiliary Channels
    • 1.4.7 Fiber Optics
  • 1.5 Loss Budget
  • 1.6 Initial Unit Testing
• Chapter 2 - Installation and Setup
  • 2.1 Installation
    • 2.1.1 Unpacking the Unit
    • 2.1.2 Standalone Modem Installation
    • 2.1.3 Rack-Mount Modem Installation
    • 2.1.4 Fiber Cable and Connectors
    • 2.1.5 2202 Modem Shelf Installation
    • 2.1.6 Custom Oscillator Installation
  • 2.2 Setup
    • 2.2.1 HI / LO Optic Power Switch
    • 2.2.2 Internal Control Switches
      • 2.2.2.1 Carrier Detect (CD) Signal Options
      • 2.2.2.2 Internal Clock Option Switches
        • 2.2.2.2.1 TBL / NORM Switch
        • 2.2.2.2.2 CLK / EXT Switch
    • 2.2.3 Signal Ground Strap
    • 2.2.4 SCT Normal / Invert Jumper
    • 2.2.5 EXTRA CLOCK Jumper
• Chapter 3 - Mode and Rate Selection
  • 3.1 Operating Mode / Data Rate Selection
  • 3.2 External Clock Modes
    • 3.2.1 Sampled External Clock Mode - Mode 0
    • 3.2.2 Locked External Clock Mode - Mode 7
  • 3.3 Internal Clock Modes - Modes 1, 2, 3, 4
    • 3.3.1 Standard Internal Clock Rates (Groups 1, 2 and 3)
    • 3.3.2 Custom Internal Clock Rates (Group 4)
  • 3.4 Slave Clock Mode - Mode 5
    • 3.4.1 Loopback Clock for Slave Mode
  • 3.5 Asynchronous Mode - Mode 6
  • 3.6 Consideration of Propagation Delays
  • 3.7 Internal Clock Option Switches
    • 3.7.1 TBL / NORM Switch
    • 3.7.2 CLK / EXT Switch
• Chapter 4 - Data Interfaces
  • 4.1 Data Interfaces Overview
  • 4.2 RS-423 / 232D Model 432
    • 4.2.1 RTS_BIAS Jumper
    • 4.2.2 DCD Jumper
    • 4.2.3 CTS_GATE Jumper
    • 4.2.4 DSR Jumper
    • 4.2.5 CH_GND Jumper
  • 4.3 RS-449 / 422 Model 422
    • 4.3.1 RS_BIAS Jumper
    • 4.3.2 RR Jumper
    • 4.3.3 CS_GATE Jumper
    • 4.3.4 DM Jumper
    • 4.3.5 CH_GND Jumper
    • 4.3.6 UNBAL_REF Jumper
  • 4.4 RS-530 Interface Model 430
    • 4.4.1 RTS_BIAS Jumper
    • 4.4.2 DCD Jumper
    • 4.4.3 DSR Jumper
    • 4.4.4 CHASSIS_GND Jumper
    • 4.4.5 SCT Switch
    • 4.4.6 CTS_GATE Jumper
    • 4.4.7 CTS_OUT Jumper
    • 4.4.8 CTS (A) Jumper
    • 4.4.8.1 KG_SWING Jumper
    • 4.4.8.2 KG_OUT Jumper
  • 4.5 CCITT V.35 (ISO 2593-1993) Model 436
    • 4.5.1 RTS_BIAS Jumper
    • 4.5.2 DCD Jumper
    • 4.5.3 CTS_GATE Jumper
    • 4.5.4 DSR Jumper
    • 4.5.5 CH_GND Jumper
  • 4.6 Multi-Channel Interfaces
    • 4.6.1 RS-449 / RS-423 Model MC1
      • 4.6.1.1 RS-449 / DC-37 Interface
        • 4.6.1.1.2 RR Jumper
        • 4.6.1.1.3 CS_GATE Jumper
        • 4.6.1.1.4 CH_GND Jumper
        • 4.6.1.1.5 UNBAL_REF Jumper
        • 4.6.1.1.1 RS_BIAS Jumper
      • 4.6.1.2 RS-423 / DB-25 Interface
    • 4.6.2 V.35 / RS-423 Model MC2
      • 4.6.2.1 CCITT V.35 / MRC 34 Interface
        • 4.6.2.1.1 RTS_BIAS Jumper
        • 4.6.2.1.2 DCD Jumper
        • 4.6.2.1.3 CTS_GATE Jumper
        • 4.6.2.1.4 CH_GND Jumper
      • 4.6.2.2 RS-423 / DB-25 Interface
  • 4.7 T1 / E1 Interfaces
    • 4.7.1 Transparent Bipolar - Models 4BX
  • 4.8 TTL / BNC Interface Model -BN
  • 4.9 Programmable Buffered Interface / Model P53
    • 4.9.1 Jumper and Switch Settings
    • 4.9.2 Generic Interface
    • 4.9.3 External Station
    • 4.9.4 Internal
    • 4.9.5 External
    • 4.9.6 DTE Adapter
    • 4.9.7 Legacy Adapter
  • 4.10 High-Speed RS-422 / Mil-Std 188-114C Interfaces
    • 4.10.1 Model TW
    • 4.10.2 Model TW8
    • 4.10.3 Model T22
    • 4.10.4 Model T88
    • 4.10.5 Model D22
    • 4.10.6 Model D88
  • 4.11 Interface Reconfiguration
  • 4.12 Standalone Reconfiguration
• Chapter 5 - Troubleshooting
  • 5.1 Diagnostic Procedures
  • 5.2 Local and Remote Loopback
    • 5.2.1 Loopback Tests
    • 5.2.2 Remote Loopback Test
• Chapter 6 - Diagnostic Procedures
  • 6.1 2240 / 2201 Diagnostic Procedures
    • 6.1.1 Required Equipment
  • 6.2 Loopback Test Diagnostic Procedure
  • 6.3 Fiber Optic Diagnostic Procedure
• Chapter 7 - Specifications
  • 7.1 Optical Interface
  • 7.2 System Electrical
  • 7.3 Indicators and Controls
  • 7.4 Physical / Environmental:
  • 7.5 2240 Fiber Optic Modem Configurations
• Appendix A