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A.2 Ethernet Transmission Specifications
A
A.2 Ethernet Transmission Specifications
Note: It applies to the specifications of an application system correspondingly.
(ex. TOSDIC-CIE 1200, the numbers of nodes are a maximum of 64 nodes.)
Table A-3 Ethernet Transmission Specifications
Item Specifications
Applicable standard IEEE802. 3
• 10BASE5
• 10BASE2
• 10BASE-T
IEEE802. 3u
• 100BASE-TX
Media access CSMA/CD
Data transmission speed 10Mbps/100Mbps
Ethernet frame DIX type
Topology Bus
Ethernet frame DIX format
Transmission path Single bus
Dual bus
Transmission cable/cable
length
EN711, EN721 (10BASE5)
• Yellow cable for Ethernet: 500 m maximum
(Coaxial cable: Characteristic impedance 50 ohms)
• AUI cable: 15 m maximum
Recommended cable
AUI15 –[ ] M (Showa Electric Wire & Cable Co., Ltd.)
EN731, EN741 (10BASE2)
• 3D-2V (as drop cable or for indoor use)
• 5D-2W (as trunk cable or for use from indoor to control room): 185 m maximum
EN751, EN751A, EN761 (100BASE-TX/10BASE-T)
• Category 5 twisted pair cable : 100m maximum
FN711 (100BASE-TX/10BASE-T)
• Category 5 twisted pair cable : 30m maximum
Segment 5 segments maximum between nodes
Of the 5 segments, 3 cable segments maximum
No. of nodes 126 nodes maximum per system (or as per the system specifications of TOSDIC-
CIE 1200 when applied to TOSDIC-CIE 1200)
100 nodes maximum/segment : 10BASE5
30 nodes maximum/segment : 10BASE2
(node includes repeater)
No. of repeaters 4 repeaters maximum per system
No. of EN7 modules 4 modules maximum per base unit (Multiport)
Interface EN711, EN721 (10BASE5)
15-pin D-sub connector (socket) with slide lock
EN731, EN741 (10BASE2)
BNC connector
EN751, EN751A, EN761, FN711 (100BASE-TX/10BASE-T)
RJ-45 connector
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