The ABB PHAMSCTER20000, serves as the primary PHAMSCTER20000 Termination Accessory utilized to execute HNET bus optical termination and signal stabilization across Infi 90 platforms.

Variant Model Identification

The PHAMSCTER20000 functions as an active fiber-optic bus terminator within the HNET system network. The base prefix PHAMS identifies the high-speed network interface accessory group, while the CTER20000 designation specifies an active 1300 nm optical termination unit rated for 62.5/125 um multimode fiber cabling across distances up to 2 km.

System Specifications

Network Bus Performance and Protocol Integration

The optical terminator maintains deterministic network communication by suppressing signal reflections along the optical HNET bus backbone. This active termination supports maximum backplane bus communication velocity across node controllers, optimizes overall system I/O density scaling, and preserves complete hardware firmware flash compatibility without adding network latency.

Package Configuration

• 1 x ABB PHAMSCTER20000 Termination Accessory

Fiber Link Installation and Mounting Rules

• Clean optical connector ferrule tips with lint-free alcohol wipes prior to mating with the terminator interface port.
• Maintain a minimum fiber cable bend radius of 30 mm along trunk cabling runs to avoid optical signal attenuation.
• Connect the 5 V DC auxiliary power leads directly to the designated power rail terminal block.
• Secure the terminator housing to prevent mechanical strain on connected fiber links.

Technical FAQ

• What is the primary functional role of the PHAMSCTER20000 unit?

  The unit acts as an active optical terminator for the HNET fiber bus to eliminate signal reflections.

• What fiber optic cable specification is required for this terminator?

  It requires standard 62.5/125 um multimode fiber optic cable infrastructure.

• What operating optical wavelength does the internal transmitter use?

  The optical interface operates at a nominal center wavelength of 1300 nm.

• What is the maximum optical link distance supported by the unit?

  The terminator supports optical HNET network segment lengths reaching up to 2 km.

• What input supply voltage is required to power the active circuitry?

  The internal transceiver circuitry requires a regulated 5 V DC power input rail.

• What typical power dissipation does the terminator draw during operation?

  The unit draws a typical operational power consumption of 1.5 W from the 5 V DC supply.

• What is the maximum operating altitude without thermal derating?

  The accessory is rated for continuous operation up to 2000 m altitude without derating.

• What operating temperature range is supported by the unit?

  The module operates within an ambient temperature environment from 0 to +70 deg C.