6 Functional Description of the Ethernet Modules
6-16
6.3.4 Technical data
General features
Weight: around 150 g without buffer battery
around 170 g with buffer battery
Dimensions: 155 x 28 x 128 mm (H x W x D)
Static characteristics
Power consumption: Depends in the active state on the propor-
tion of transmitted packets:
1.4 W ... 3.1 W
Protective circuitry: Short-circuit protection circuit with current
delimiter
Medium: Coax. cable, 50 ohms, type RG58U
Max. segment length: 185 m
Max. number of nodes per segment: 30
Battery: Lithium battery, 3.6 V, > 950 mAh
Low battery signaling:
≤ 2.4 V
RAM and real-time clock buffering time
for PM 802F:
for PM 803F:
≥ 1.5 years
≥ 20 days
Dynamic characteristics
Transmission rate: 10 Mbit/s