Ethernet Module EI 803F

Features 

… IEEE802.3 Ethernet standard 

… provides 10BaseT compliant communication (10MBit) 

… 32-bit data bus 

… Transmission rate 10 MBit/s 

… Direct memory access to main memory, < 4% CPU overhead for operation 

… Optional battery for redundant battery backup of main memory

Description 

These communication modules provide Ethernet communications to the system bus compliant with IEEE802.3 standard. 

Communications module, compliant with 10BaseT shielded ，Twisted Pair (STP, cable category 3, 4 or 5 advanced)。

LED Displays 

State 

 Off No supply voltage, module is isolated 

 Green Power supply on, module identified and ready to operate as configured. 

 Orange Power supply on, module identified and either: 

 — normal transitory state after module startup 

 — configuration mode of Boot Loader 

 Orange flashing Power supply on, module identified; module not connected to proper bus structure. Red Power supply on and either: 

 — module not yet identified (normal for short time during module startup) 

 — error occurred during module test Batt. Low Off Sufficient buffer battery voltage. Orange Buffer battery not found or low (insufficient voltage).

Front Panel Connections 

RJ-45 female connector (shielded).There are two integrated 

LEDs indicating the current communication status. The LEDs are not labeled but can be identified by their color. The upper yellow LED indicates the link state, the lower green LED indicates active communication. 

LED 10BaseT link off No active link. No communication possible. static yellow Active link. Communication possible. 

LED 10BaseT active off No communication. 

Technical Data

Rated voltage 3.3 V / 5 V, ±3%, from CPU board 

Power consumption max. 1.8 W 

STP 10BaseT cable category 3, 4 or 5 advanced 

RAM and real-time-clock buffering time 

PM 802F PM 803F 

New battery inserted ≥ 1,5 years without buffering 

After “Low” warning ≥ 10 days 

Battery 3.6 V lithium battery, 950 mAh (not in the delivery) 

Weight approx. 0.150 kg (without battery) flashing green Active communication.