Extron DSC 3G-3G A 是一款高性能 3G-SDI 图像解析度转换器，可以在 3G-SDI、HD-SDI 和 SDI 分辨率以及帧率之间进行转换。它可接受分辨率从 480i 和 576i 到 1080p/60 和 2K 的 SMPTE 视频信号，并对其进行图像解析度转换和输出。DSC 3G-3G A 采用高级 Extron 视频信号处理技术，可对高达 1080i 的信号进行去隔行处理和深色处理。DSC 3G-3G A 还提供了音频加嵌、解嵌和音量调整等灵活的音频功能。双路 SDI 输出、同步锁相和输入环通可便于在高要求的专业环境中进行集成，同时其紧凑的外壳还能简化安装。在采用专业视频系统的应用环境，如视频编辑和制作、舞台租赁、医疗成像和大型演示等，DSC 3G-3G A 无疑是理想之选。

技术参数

DSC 3G-3G A
Video input
Number/signal type	(1) 3G/HD/SD-SDI digital video
Connectors	1 female BNC  1 female BNC loop-through
Nominal level	0.8 Vp-p
Impedance	75 ohms
Horizontal frequency	15 kHz to 67.5 kHz
Vertical frequency	24 Hz to 60 Hz
Resolution range	480i, 576i, 720p, 1080i, 1080PsF, 1080p, 2K (2048x1080)
Data rates	270 Mbps, 1.485 Gbps, 2.970 Gbps
Return loss	≥15 dB @ 5 MHz to 1.5 GHz
Input cable equalization	Automatic for up to -30 dB of cable loss
3G-SDI	60 m (200') using Extron RG6 cable 45 m (150') using Extron RG59 cable
HD-SDI	120 m (400') using Extron RG6 cable 90 m (300') using Extron RG59 cable
SD-SDI	150 m (500') using Extron RG6 cable 120 m (400') using Extron RG59 cable
Operation standards	SMPTE 259M-C, 292M, 424M
Video processing
Digital sampling	30-bit, 10 or 12 bits per color, 148.5 MHz standard (pixel clock)
Colors	1.07 billion (10-bit processing)
Video output
Number/signal type	(2) 3G/HD/SD-SDI digital component video
Scaled resolutions	480i7, 576i6, 720p1,2,3,4,5,6,7,8, 1080i6,7,8, 1080p1,2,3,4,5,6,7,8, 2K (2048x1080)1,2,3,4,5,6,7,8 ​1 = at 23.98 Hz, 2 = at 24 Hz, 3 = at 25 Hz, 4 = at 29.97 Hz, 5 = 30 Hz, 6 = at 50 Hz, 7 = at 59.94 Hz, 8 = at 60 Hz
Connectors	2 female BNC, SDI
Data rates	270 Mbps, 1.485 Gbps, 2.970 Gbps
Nominal level	0.8 Vp-p
Impedance	75 ohms
DC offset	±0.5 V with input at 0 offset
Timing jitter	≤2.0 UI (unit interval) above 10 Hz (3G-SDI) ≤1.0 UI above 10 Hz (HD-SDI) ≤0.2 UI above 10 Hz (SD-SDI)
Alignment jitter	​≤0.3 UI (unit interval) above 100 kHz (3G-SDI) ≤0.2 UI above 100 kHz (HD-SDI) ≤0.2 UI above 1 kHz (SD-SDI)
Operation standards	SMPTE 259M-C, 292M, 424M
External sync (genlock)
Number/signal type	1 genlock input 1 genlock loop output
Connectors	2 female BNC
External sync (genlock)	Auto-sensing: Tri-level (high definition: 720p through 2K), bi-level (standard definition: 480i and 576i)
Impedance	75 ohms
Return loss	>30 dB @ 5 MHz (genlock input) ≥21 dB @ 5 MHz (genlock loop output)
Audio
Frequency response	20 Hz to 20 kHz, ± 0.5 dB
THD + Noise	<0.1% @ 1 kHz, 20 kHz bandwidth at nominal level
S/N	>90 dB, at maximum output (unweighted)
Stereo channel separation	>80 dB @ 1 kHz
Audio input
Number/signal type	1 SDI embedded audio 1 analog stereo, balanced/unbalanced
Connectors	1 female BNC, SDI (1) 5 pole captive screw, analog
Impedance	>​10k ohms unbalanced, >20k ohms balanced
Nominal level	+4 dBu (1.23 Vrms), -10 dBV (316 mVRMS), adjustable
Maximum level	+21 dBu balanced, +15 dBu unbalanced
Input gain adjustment	-18 dB to +24 dB (analog)
NOTE     0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu
Audio output
Number/signal type
SDI	2 AES — embedded audio — up to 16 channels pass-through
Analog	1 stereo or mono, balanced/unbalanced
Connectors
SDI	2 female BNC — audio embedded in SDI signal
Analog	(3) 3.5 mm captive screw, 5 pole
Impedance	50 ohms unbalanced, 100 ohms balanced
Gain error	±0.25 dB channel to channel
Maximum level (Hi-Z)	>+21 dBu, balanced >+11 dBu, unbalanced
Output volume range	0 dB to -100 dB in 1.0 dB steps
Standards	SMPTE 291M, SMPTE 299M
Communications
Serial control port	1 RS-232, 3 pole captive screw (rear panel)
Serial control pin configuration	Pin 1 = Tx, pin 2 = Rx, pin 3 = ground
Baud rate and protocol	9600 baud, 8 data bits, 1 stop bit, no parity (default)
USB control port	1 female mini USB-B (front panel)
Program control	On-screen display (OSD) via front panel control Extron Simple Instruction Set (SIS™) ​Extron control/configuration program for Windows®
USB control port	1 female USB mini-B (front panel)
General
Power supply	Internal ​Input: 100-240 VAC, 50-60 Hz
Power consumption	13.9 watts
Ambient temperature/humidity	Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing
Cooling	Fan, air flows from front to rear
Thermal dissipation	47.3 BTU/hr
Mounting
Rack mount	Yes, with optional rack shelf
Furniture mount	Yes, with optional under-desk mounting kit
Enclosure type	Metal
Enclosure dimensions	1.65" H x 8.75" W x 8.5" D (1U high, half rack wide) (42 mm H x 222 mm W x 216 mm D) (Depth excludes connectors.)
Product weight	2.1 lbs (1.0 kg)
Regulatory compliance	CE, c-UL, UL, C-tick, FCC Class A, ICES, VCCI
Product warranty	3 years parts and labor
Everlast power supply warranty	7 year parts and labor
NOTE     All nominal levels are at ±10%.
NOTE     Specifications are subject to change without notice.
(5316-D5)