[CermetekMicroelectronics, Inc]

INTRODUCTION
The CH1817 is a Family of Low Profile Data Access Arrangement(DAA) Modules. They are compatible with all modemchip sets. These devices have been tested to meet or exceedFCC Part 68requirements and are Canadian DOC approvable. They are also recognized byUnderwriters Laboratoriesto UL 1459
Specifications.

FEATURES
• Low Profile, Ultra small size: 1.0” x 1.0” x 0.35”
• Complete DAA function
• Ring detection
• Built-in 2-wireto 4-wire conversion
• Lightweight
• Multimedia compatible
• +5V operation
•  1000 VAC isolation
•  800 Volt surge protection
• V.32bis/14,400bps, applications
• UL1459 recognized
•  CH1817-L: Low power consumption andCommon mode noise rejection filter
•  CH1817-LM(special order): Reduced transmit attenuation
•  CH1817-D: Differentialtransmissioninput and 0dB transmission insertion loss.