Electrical Design
‑87‑
Figure 3‑26 Tree topology
Cable Specifications
The Ethernet bus uses shielded cables for network data transmission. The following
table lists the recommended specifications of network cables.
Table 3–40 Ethernet cable specifications
Item
Specifications
Cable type Elastic crossover cable (8P8C straight‑through cable),
S‑FTP, Cat 5e
Standard compliance EIA/TIA568A, EN50173, ISO/IEC11801
EIA/TI Abulletin TSB, EIA/TIA SB40‑A&TSB36
Cable section
AWG26
Cable category Twisted pair
Pair
4
Figure 3‑27 Shielded network cable
To connect the RJ45 network cable, hold the registered jack of the cable and insert it
into the RJ45 interface of the communication module until it makes a "click" sound.
To remove the RJ45 network cable, press and hold the tail of the registered jack, and
then pull it out along the direction parallel with the module.
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