Roland S-0816, S-1608 Appendix C: Ethernet Switching Hub Requirements

Appendices

S-1608/S-0816 Digital Snake Owner’s Manual 71

To be used in a REAC system, an Ethernet switching hub must meet the following requirements:

• 1000BASE-T transmission speed (IEEE802.3ab, Gigabit Ethernet)

• Support for 100BASE-TX devices (IEEE802.3u, Fast Ethernet)

• Bi-directional (full-duplex) communication

Connect REAC devices only to switching hub ports that support 100BASE-TX.

Appendix C: Ethernet Switching Hub Requirements

The transmission protocol for REAC is based on 100BASE-TX (Fast Ethernet). To transfer up to 40

channels of digital audio, REAC uses the full bandwidth of this protocol. However, some 100BASETX

switching hubs cannot handle this amount of data traffic. Gigabit Ethernet switching hubs can handle

a larger amount of data traffic, so we recommend them for use with REAC devices (just be sure that

the Gigabit switching hub you use supports 100BASE-TX devices).

When using switching hubs in-line for REAC cable length extension, a maximum of four hubs can be

used. (Total cable length with four switching hubs: 500 meters. See Chapter 6 for more information.)

Consult the switching hub’s documentation for information on its proper use.

When a switching hub is used in-line with REAC cables, the network latency will increase by the

amount of processing delay introduced by the hub itself. The actual delay is dependant upon the

specifications of the hub, though the maximum delay amount for a single hub should be about 200

microseconds.

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Contents

Main Owners Manual S-1608 STAGE UNIT S-0816 FOH UNIT S-4000R REMOTE CONTROLLER CAUTION IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS S-1608/S-0816 Digital Snake Owners Manual 3 THE UNIT SAFELY THE UNIT SAFELY 4 S-1608/S-0816 Digital Snake Owners Manual IMPORTANT NOTES Additional Precautions Maintenance Placement Table of Contents 6Using the S-1608/S-0816 System . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 8 S-1608/S-0816 Digital Snake Owners Manual Introduction How the Manual is Organized Welcome About This Manual Conventions Used in the Manual Usage Conventions Names Note, Tip, and Warning Icons Other S-1608/S-0816 Digital Snake Documents Main Features System Components S-0816 FOH Unit S-1608 Stage Unit S-4000R Remote Controller Components and Accessories Whats Included Accessories for S-4000R Accessories for S-0816 System Options Panel Descriptions S-1608 Stage Unit / S-0816 FOH Unit 1INPUT Connectors 4REMOTE Connector 3REMOTE Indicator 2OUTPUT Connectors 5Digital Out Connector (Optical Type) 9Power Indicator 8REAC Indicator 7[REAC MODE] Switch S-1608/S-0816 Side Panel Page S-4000R Front Panel 3[CHANNEL] Knob and CHANNEL Display 2Memory Buttons ([RECALL] Button/ [STORE] Button) S-4000R Remote Controller 4[CLIP CLEAR / ENTER] Button 8[LOCK] Button 7Input Signal Level Meter 6[GAIN] Knob S-4000R Rear Panel S-1608/S-0816 System Overview ...Meets the New Generation The Old School... Things to Know Ethernet Connectors About Ethernet Switching Hubs A/D-D/A Conversion and Signal Optimization RS-232C Serial Interface S-1608 Stage Unit The System Components: A Closer Look S-4000R Remote Controller Computer Control Using the S-1608/S-0816 System Precautions for Rack Mounting Installation S-1608 and S-0816 S-4000R Using the AC Cord Clamp Installing the Included Ferrite Core on Ethernet Cables Page Connection Overview Setting the REAC Mode Setting the REAC Mode Setting the [REAC MODE] Switches AC Power Connections S-1608 S-0816 Cable Requirements Component Connections REAC Cable Length Extension REAC Connection Notes S-1608 S-0816 Notes About Handling Cat5e Cables (REAC Cables) Connecting the S-4000R Remote Controller S-1608/S-0816 Audio Connections Audio Connections S-1608/S-0816 Audio Inputs Input Status Indicators S-1608/S-0816 Audio Outputs Powering Up Powering Up Power Indicators REMOTE (CTRL) Indicators (Remote Communication) REAC System Indicators (REAC Communication) System Status Indicators Muting the System Outputs Lock Mode Using the S-4000R Remote Controller Monitoring Input Signals LED Input Meter Clearing the CLIP Indicators Signal Status Indicators S-1608/S-0816 Input Channel Settings Setting the Preamp Gain Selecting a Channel for Editing Input Pad Phantom Power Stereo Link Stereo Link Notes Memory Function Recalling a Memory Preset (Memory Recall Mode) Storing a Memory Preset (Memory Store Mode) Advanced Use Using Two S-4000R Units in a Single S-1608/S-0816 System Where to Get the S-4000 RCS Computer Control (S-4000 RCS) Splitting Stage Audio to Multiple Destinations What Youll Need Ethernet Switching Hub Requirements Split Connection Overview Notes on Split Setups Setting the [REAC MODE] Switches 60 S-1608/S-0816 Digital Snake Owners Manual REAC Connections Audio Connections and Power Up Applications 16x8 System 16x8 System with 16 Channel Split 32x16 System 32x16 System with 32 Channel Split Its possible to use the S-1608/S-0816 with S-4000S or S-4000H in the following configuration. Connection to S-4000S/S-4000H Appendices S-1608 and S-0816 Units: System Status Indicators Appendix A: Troubleshooting S-4000R Unit: System Status Indicators S-4000R Unit: Error Indicators Cat5e Ethernet Cable Wiring (RJ45-type Connectors) Cat5e Straight-Through Wiring Note: Pins 4, 5, 7, and 8 are not used in this application, but may be wired in the cable as shown. Appendix B: Connector Information RS-232C (REMOTE) Connector (D-Sub, DB-9-type) Pin Number Signal Name Pin Connection Unbalanced connections: Balanced connections (recommended): Appendix C: Ethernet Switching Hub Requirements Specications: S-1608 STAGE UNIT Appendix D: Specications Specications: S-0816 FOH UNIT [Specications: S-4000R REMOTE CONTROLLER Dimensions: S-1608 Appendix E: Dimensions Dimensions: S-0816 Dimensions: S-4000R Index R P O FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT S-1608_e.book 80 04569478 07-04-1N Information NORTH AMERICA As of May 1, 2007 (RSS) ASIA INDONESIA