Document Outline

• Introduction
  • 1.1 2240 Modem
    • 1.1.1 LEDs and Switches
  • 1.2 2201 Rack Chassis
  • 1.3 2202 Modem Shelf
  • 1.4 2200R Series Redundant Card
  • 1.5 Modem Operation
    • 1.5.1 General
    • 1.5.2 System Test and Diagnostics
    • 1.5.3 Transmit Section
    • 1.5.4 Receive Section
    • 1.5.5 Expanded Interface Control Channels
    • 1.5.6 Expanded Interface Auxiliary Channels
    • 1.5.7 Fiber Optics
  • 1.6 Loss Budget
  • 1.7 Initial Unit Testing
• Installation and Setup
  • 2.1 Setup
    • 2.1.1 Unpacking the Unit
    • 2.1.2 HI/LO Optic Power Switch
    • 2.1.3 Internal Control Switches
      • 2.1.3.1 Carrier Detect (CD) Signal Options
      • 2.1.3.2 Internal Clock Option Switches
      • 2.1.3.3 TBL/NORM Switch
      • 2.1.3.4 CLK/EXT Switch
    • 2.1.4 Signal Ground Strap
    • 2.1.5 SCT Normal/Invert Jumper
    • 2.1.6 EXTRA CLOCK Jumper
    • 2.1.7 Setting Up a Tail Circuit
  • 2.2 Installation
    • 2.2.1 Standalone Modem Installation
    • 2.2.2 Rack-Mount Modem Installation
    • 2.2.3 Fiber Cable and Connectors
    • 2.2.4 2202 Modem Shelf Installation
    • 2.2.5 Custom Oscillator Installation
• 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
• Data Interfaces
  • 4.1 Data Interfaces Overview
  • 4.2 RS-423/232D Model 432
    • 4.2.1 DCD Jumper
    • 4.2.2 CTS_GATE Jumper
    • 4.2.3 DSR Jumper
    • 4.2.4 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
    • 4.4.9 1 KG_SWING Jumper
    • 4.4.10 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
    • 4.6.2 RS-449/422 Interface
    • 4.6.3 RS_BIAS Jumper
    • 4.6.4 RR Jumper
    • 4.6.5 CS_GATE Jumper
    • 4.6.6 CH_GND Jumper
    • 4.6.7 UNBAL_REF Jumper
    • 4.6.8 RS-423/DB-25 Interface
    • 4.6.9 V.35/RS-423 Model MC2
    • 4.6.10 CCITT V.35/MRC 34 Interface
    • 4.6.11 RTS_BIAS Jumper
    • 4.6.12 DCD Jumper
    • 4.6.13 CTS_GATE Jumper
    • 4.6.14 CH_GND Jumper
    • 4.6.15 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
• Troubleshooting
  • 5.1 Diagnostic Procedures
  • 5.2 Local and Remote Loopback
    • 5.2.1 Loopback Tests
    • 5.2.2 Remote Loopback Test
• 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
• Specifications
  • 7.1 Optical Interface
    • 7.1.1 Distance Guide
  • 7.2 System Electrical
  • 7.3 Indicators and Controls
  • 7.4 Physical and Environmental
  • 7.5 2240 Fiber Optic Modem Configurations