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SW8 8通道二选一自动、手动切换器

应用特点

u 8 通道二选一自动、手动冗余切换器

u 实现两套主、备音频系统自动、手动切换

u 用于音频系统前端主、备放音信号的自动切换

u 用于音频系统末端主、备信号的自动切换

u 可拓展到 48 通道 LINK 功能，支持远程遥控切换

u 支持平衡或者非平衡话筒、线路级别的切换

u 兼容 AES/EBU 数字、模拟音频信号

u 前面板带 A&B 手动切换按钮，无源切换

u 丰富的多种格式连接，包括：XLR/大三芯/25 针 D-SUB

u 1U19 吋标准机架安装

u 军用级 14 规格钢材焊接制，使电路板不会发生扭转

 

 

技术参数

u 设备类型：无源信号跳线，有源信号切换

u 输出阻抗：150 Ω 

u 输入阻抗：140K Ω

u 频率响应：20Hz~20KHz

u 增益：-20dB

u 动态范围：>120dB

u 总谐波失真：0.002%

u 本底噪声：-115dBu

u 信噪比：>94dB

u 等效输入噪声：-95dBu

u 最大输入：26dBu

u 相位偏差：-2°@20Hz

u 互调失真：>0.002%

u 共模抑制比：-112dBat50/60Hz

u 输入衰减：-30dB

u 尺寸：445x153x17.5mm

u 重量：4.2Kg

 

SW8 Auto-Switcher

Auto-Switcher

The Radial SW8? is an 8-channel auto-switcher that allows you to set up a redundant backup system by automatically switching between two multi-channel playback systems.

Switch between redundant playback systems

Manual or seamless automatic switching

Line level or transformer isolated mic level outputs

May be linked for larger playback systems

Under the Hood

Designed primarily for live concerts and stage shows where backing tracks are used for orchestration, vocals and sound effects, SW8 employs an adjustable gate to detect a machine malfunction and automatically switch to a second backup machine to deliver a seamless performance. The SW8 will monitor any continuous audio signal such as SMPTE on the main playback system, and should the signal drop it will automatically switch to the backup. Switching can also be performed manually on the front panel, or by using a footswitch such as the Radial JR2. For larger systems beyond 8 channels, multiple SW8s may be linked together.

SW8 Specifications

The Radial SW8 is an 8-channel auto-switcher designed to switch balanced and unbalance audio sources and deliver them via a straight wire or transformer coupled interface. As solid wire specifications cannot be measured, the graphs below depict the performance of the SW8 using the transformer isolated XLR outputs. it is also important to note that the direct box outputs are designed to reduce a +4dB balanced source to a lower mic level source, thus resulting in a -20dB drop in level. This enables the SW8 to be used in a typical snake system without fear or overload and crosstalk.

 

Specifications

Block Diagram

Graphs

Specifications

Audio circuit type: Passive signal path with active relay switching

Transformer: Eclipse ET-DB2

Number of channels: 8

Frequency response: 20Hz ~ 20KHz

Dynamic range: >120dB

Gain: -20dB

Total harmonic distortion: 0.002%

Intermodulation Distortion: >0.002%

Phase Deviation: -2° @ 20Hz

Input Impedance: 140k Ohms, balanced

Output Impedance: 150 Ohms, balanced

Common Mode Rejection Ratio: -112dB at 50/60Hz

Equivalent Input Noise: -95dBu

Noise: -115dBu

Maximum Input: 26dBu

Features

Input pad, Ground lift, Remote Footswitch

Input Connectors: 1/4" TRS, D-sub

Output Connectors: XLR, D-sub

Extras: Contact Alarm Input, JR-2 XLR

General

Construction: 14 gauge steel chassis & outer shell

Size (L x W x D): 17.5" x 6" x 1.75" (1112.5px x 381.25px x 112.5px)

Weight: 9.2 lb (4.2kg)

Shipping size (L x W x D): 22" x 10.375" x 4.5" (1397.5px x 660px x 285px)

Shipping weight: 9.7 lb (4.4 kg)

Power: Two +15VDC/400mA power supplies included

Conditions: For use in dry locations only between 5°C and 40°C

Warranty: Radial 3-year, transferable