Expander Processor (T8310) Technical Overview

1. Module Role & System Integration

The Expander Processor (T8310) resides in the two leftmost processor slots of the expander chassis, acting 

as a critical interface between the expander and controller chassis. It enables:

Fault tolerance via HIFT (High Integrity Fault Tolerant) TMR architecture.

Rapid fault identification through comprehensive diagnostics, monitoring, and testing.

Support for standby module configurations, allowing both automatic and manual repair strategies.

2. Physical & Electrical Specifications

Power Supply: Derives internal voltages from dual redundant +24V dc power, supplied via the module 

connector from the expander chassis backplane. This redundancy ensures uninterrupted operation even in 

the event of a single power path failure.

Mechanical Design: As illustrated in Figure 6-3: Expander Processor, the module features a standardized 

form factor for seamless integration into the expander chassis.

3. Communication & Data Transfer

Interconnection: Expander processor modules connect to expander interface modules via the hot link cable 

TC-301 and expander interface adaptor unit T8312.

Data Transfer Rate: Achieves a high-speed data transfer rate of 250Mbps, ensuring efficient 

communication between the expander and controller subsystems.

4. Status LEDs & Indications

The module’s status LEDs provide granular visibility into operational health and activity, as defined in 

Table 6-1: Expander Processor Module LED Indications:

Healthy:

Three LEDs (one per slice) indicate the overall health of each processor slice.

Steady green = Healthy slice.

Flashing red = Fault in the corresponding slice.

Active: Illuminates green when the module is in Active mode.

Standby: Illuminates steady green when the module is in Standby mode.

TxRx (Transmit/Receive):

Three LEDs (one per channel) indicate communications activity on each processor channel.

When active: Green = Receive activity; Red = Transmit activity (appears amber when both occur 

simultaneously); Off = No activity or failed channel.

When in standby: No Transmit activity (red LED remains off).

5. Fault Tolerance & Maintenance

HIFT TMR Architecture: The module’s design ensures that single-point faults do not disrupt system 

operation, maintaining integrity even as components degrade.

Diagnostics & Repair: Comprehensive monitoring facilitates rapid fault detection, while support for 

standby configurations enables both automated failover and manual repair workflows, minimizing 

downtime.

How we deliver

Supply Ability:In stock,within 3 days send the products.

Price:The more you order,the lower price you will get.

Our products is ship with original factory new package.

We will cover our our professional foam protective packaging to keep worldwide shipping no damaged.

We have many couirer partner,like DHL,TNT,FeDex and UPS

The factory will strictly test all the goods before shipment,and the warehouse staff will also check the 

integrity of the product packaging when it is shipped.