公司名称：深圳市瑞明通讯设备有限公司

The Agilent / HP 81533A & 81533B interface modules operate with the 815xx optical head and 8153, 8163, and 8164 mainframes. Agilent Technologies does not publish specifications for the 81533A or 81533B interface modules as it must always operate with an optical head and mainframe.
The 81533B module can be used with optical heads: 81520A, 81521B, 81524A, and 81525A.
The 81533A module can be used with optical heads: 81521B and 81524A.
Product Family: Single Optical Head Interface Module, Analog Signal Output BNC, Compatible with 8153, 8163, and 8164 Mainframes, Needed to Interface 815xxA Optical Heads