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HD/SD-SDI 视频延迟

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7743DLY-HD 是全功能的高清/标清视频延时模块,专门针对卫星上连、信号重返主控输入、电缆数据转发、机动车输出、广播发射器输入、虚拟设置和配合由多通道音频压缩而引起的延时而设计的。

7743DLY-HD 可以作为标清 SMPTE ST 259 视频或高清的延时。

7743DLY-HD 可以延迟达 3.2 秒高清和 16.5 秒标清。考虑到广播的环境,这些模块对输出提供了旁路继电保护。

The 7743DLY-HD occupies two card slots and can be housed in the 1RU 7801FR frame which holds up to four single or two dual slot modules, the 3RU 7800FR frame which has a 15 slot capacity, the portable 3RU 350FR frame which has a 7 slot capacity, or a standalone enclosure which holds a single module.


  • 具有对所有信号延时的能力,包括用于SMPTE ST 292-1 (1.5Gb/s) 信号的VBI和ANC数据
  • 也支持对用于SMPTE ST 259 (270Mb/s) 信号的VBI信号的延迟
  • 延时可设成以视频为单位(帧、行和取样)或以时间为单位(秒)
  • 自动检测视频标准
  • 旁路继电,用于节目路径在掉电时的保护
  • 最高 3.2 秒高清延迟
  • 最高 16.5 秒标清延迟
  • 卡边控制工作于屏幕显示系统上,用于设置延时的设定
  • 输入电路具有一行的缓冲,非常适用于在上游设备中热开关时的“减干扰“(对高清设备十分有用)
  • VistaLINK® capable for remote monitoring, control and configuration capabilities via SNMP; using VistaLINK® PRO, CP-2116E or CP-2232E Control Panels. VistaLINK® is available when modules are used with the 3RU 7800FR frame and a 7800FC VistaLINK® Frame Controller module in slot 1 of the frame


High Definition Serial Digital Video

标准 ST 292-1 (1.5GB/s) or SMPTE ST 259 (270MB/s)
端口数目 BNC per IEC 61169-8 Annex A
均衡 Automatic to 75m @ 1.5GB/s with Belden 1694A or equivalent cable
反射损失 > 15dB up to 1.0GB/s
> 10dB up to 1.5GB/s (with relay)

Standard Definition Serial Digital Video

标准 SMPTE ST 259-C (270MB/s)
端口数目 BNC per IEC 61169-8 Annex A
反射损失 > 15dB up to 270MB/s

Serial Video Outputs

输出数量 1 with relay bypass, 1 additional output
端口数目 BNC per IEC 61169-8 Annex A
信号电平 800mV nominal
直流偏置 0V ±0.5V
Rise And Fall Time 200ps nominal (HD), 740ps nominal (SD)
过冲 < 10% of amplitude
反射损失 > 15dB up to 1.5GB/s (HD), > 15dB up to 540MB/s
Wide Band Jitter < 0.2UI

同步锁相 Input

Type HD 三电平 Sync
NTSC or PAL Color Black 1V p-p, or
Composite bi-level sync (525i/59.94 or 625i/50) 300mV
端口数目 BNC per IEC 61169-8 Annex A
Termination 75Ω (jumper selectable)


Minimum Delay 65.5ms (1770 samples) for standard definition, 37.7ms (2800 samples) for high definition
Maximum Delay Approx. 16.5s for standard definition, approx. 3.2s for high definition


电压 +12V DC
功率 20 watts
EMI/RFI Complies with FCC Part 15, Class A
EU EMC Directive


插槽数 2

Stand Alone Enclosure

尺寸 14" L x 4.5" W x 1.9" H
(355mm L x 114mm W x 48mm H)
双通道 Approx. 1.5lbs (0.7kg)


7743DLY‑HD HD/SD-SDI 视频延迟


注意 Rear plate must be specified at time of order - eg: [model]+3RU
Rear Plate Suffix
+SA Standalone Enclosure Rear Plate
+3RU 3RU rear plate for use with 350FR, 7700FR-C, 7800FR or 7801FR Multiframes


350FR Portable Multiframe which holds 7 single slot modules
7700FR-C 3RU Multiframe which holds 15 single slot modules
7800FR 3RU Multiframe which holds 15 single slot modules
7801FR 1RU Multiframe which holds up to 4 single slot or 2 dual slot modules
S7701FR 7700 Series Standalone Enclosure


7800FC VistaLINK® 主机控制器
CP-2116E-H System Control Panel, One Touchscreen LCD and 16 LCD Buttons
CP-2232E System Control Panel, 2RU, Two Touchscreen LCDs and 32 LCD Buttons