包含了两根
用于传输视频的紧包单模光纤，4跟
20AWG或者2根16AWG规格的辅助铜导
线（根据设计而异）和2根24AWG规格的
铜导线传输控制信号。其中黄色和蓝色的
两根光纤可以在保证信号质量和可靠性的
前提下长距离传输高质量的音视频信号。
与传统摄像机线缆比，新的线缆设计提供
更细的外径尺寸和更轻的重量，因此更方
便安装和铺设。

Belden Digital Camera Cables for Studios and OB Vans
Full collection of SMPTE311
compliant digital camera cables offer different choices to meet the
customer needs in different application environment

In 1998 the Society of Motion Picture and
Television Engineers (SMPTE) developed the
industry standard SMPTE 311 for
High-Definition Television Camera cables to
assure clear, reliable transmission of audio,
video and camera control signal.
Belden’s composite cable incorporates two
tight-buffer, single-mode 10 m optical fibers
for video, four 20 AWG or two 16 AWG
auxiliary conductors (depending on the
design) and two 24 AWG signal conductors.
The fibers, color-coded blue and yellow,
permit long-haul transmission of critical
audio and video signals with extraordinary
reliability and clarity. The new standard
provides a cable smaller in diameter and
lighter in weight than traditional camera
cables resulting in easier handling during
installation or in field applications.

Belden’s SMPTE 311 cables are 7804S,
7804R, 7804P, 7804C and 7804WB.
• 7804R is the riser version of the composite
cable made with tight buffer fiber designs
and (4) 20 AWG auxiliary (power)
conductors per traditional design
parameters
• 7804P is the plenum version of 7804R
• 7804S is the low cost version of 7804R, with
same design and similar transmission
performance, the only difference is the
flame retardant performance of the cable is
only FT-4 compliant but not UL1666
certified, suitable to cost sensitive and don’t
have strong requirement on flame retardant
performance on cable
• 7804C has been designed with breakout
fibers to enhance ruggedness and with (2)
16 AWG auxiliary (power) conductors to
simplify termination and reduce installation
time. In addition, a central stainless steel
strength member is used for additional
durability during installation. The overall
jacket is black Belflex® providing
exceptional flexibility
• 7804WB is the water-blocking version of
the SMPTE311 compliant composite camera
cable when the cable needs to be used in
wet environment
7804S – Belden’s answer to
high performance and cost
effective SMPTE 311 digital
camera cable

百通的SMPTE311线缆系列包括
7804S, 7804R, 7804P, 7804C 和
7804WB
• 7804R是系列中干线级的复合摄像机
线，包括紧包光纤和4根20AWG规格的
辅助铜导线用于供电
• 7804P是系类中增压级的产品，与
7804R设计相同，防火等级更高
• 7804S是系列中7804R的低成本版本，
基本设计相同，传输性能相同。区别是
防火等级，7804S是FT-4级别的产
品，适用于对防火要求不高但对成本敏
感的用户
• 7804C被设计成带有分支光纤以增强耐
用性，其包括2根16AWG规格的供电导
线以简化端接缩短安装时间。此外，还
采用了不锈钢的中心加强单元以提高耐
用性。其外护套采用黑色Belflex®材
料，提供优异的柔韧度
• 7804WB是系类中7804R防水的版本，
适用于潮湿的场合