Table 6: Rules for KNX Protocol
Rules/Maximums AllowedCategory
No terminationTermination
At least ISO 9002Manufacturer's Quality
Management System
Table 7: Guidelines for LONWORKS Network Bus Topology
Maximum Segment Length with
FTT10 and/or LPT10 Devices
1
Maximum Segment Length with FTT10
Devices Only
1
Cable Type
2,200 m (7,218 ft)2,700 m (8,858 ft)Belden® 85102 Cable
2,200 m (7,218 ft)2,700 m (8,858 ft)Belden 8471 Cable
1,150 m (3,773 ft)1,400 m (4,593 ft)Level IV 0.6 mm (22 AWG)
750 m (2,460 ft)900 m (2,953 ft)JY (St.) Y 2 x 2 x 0.8
1 For the bus topology, the maximum length stub cable is 3 m (10 ft), and the stub lengths must be calculated into the overall
segment length.
Table 8: Guidelines for LONWORKS Network Free Topology
Maximum Segment Length with
FTT10 and/or LPT10 Devices
Maximum Node-to-Node DistanceCable Type
500 m (1,640 ft)500 m (1,640 ft)Belden 85102 Cable
500 m (1,640 ft)500 m (1,640 ft)Belden 8471 Cable
500 m (1,640 ft)400 m (1,312 ft)Level IV 0.6 mm (22 AWG)
500 m (1,640 ft)320 m (1,050 ft)JY (St.) Y 2 x 2 x 0.8
Table 9: Maximum Number of Devices per LONWORKS Network Segment
Maximum AllowedDevice Type
32 LONWORKS devices supported (on NIE292x Type models only).FTT-10 Nodes Only
([FTT10 x 2] + LPT10) < 32Mixed FTT-10 and LPT-10
Nodes
1
Terminators
2 bus type EOL terminators required (NU-EOL202-0)Bus Topology
1 free topology terminator required (NU-EOL203-0)Free Topology
Maximum of 1 per segmentPhysical Layer Repeaters
1 Each LPT10 channel segment (between repeaters) requires its own power supply. Other factors, such as power consumption
of individual LPT10 devices, may limit a segment to fewer devices. The NCE does not have an internal network terminator.
Table 10: NIE Ethernet Network Rules
Rules/Maximums Allowed
1
Category
Point-to-point star topology with network hubs and switchesGeneral
Maximum of 100 supervisory devices may be connected to one site in the Metasys system.
Number of Devices
2,000 m (6,600 ft) for plastic or glass fiber optic with external adapterLine Length and Type
100 m (330 ft) CAT5 cable
For 10/100 BaseT, no line terminators allowedTerminations
18NIE29 Installation Instructions
To Next Page
Loading...
Need help?
General
