Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User Manual - Manual (Page 89)

3–3 Connect the Adapter to the PROFIBUS DP Network
Publication 1794ĆUM057B-EN-P - November 2001
Line B cabling can support baudrates as high as 500k bits/s.
Cables
You need a shielded twisted pair cable for your cabling (bus
segments or drop cables). Any shielded twisted pair cables available
on the market can be used to connect your adapter to a PROFIBUS
network, however, bus segment cables must contain wire for data
ground and a cable braid shield. We recommend Sprecher+Schuh
cable as shown in the table below.
TĆjunction Connectors
You need t-junction connectors to connect your droplines to bus
segments. You can use any t-junctions available on the market,
however, we recommend Sprecher+Schuh connectors as shown in
the table below.
Termination Blocks
Termination blocks are only needed if the devices on the end of the
network do not have built-in terminating resistors. If you need to use
termination blocks, any termination blocks available on the market
can be used, however, we recommend Sprecher+Schuh termination
blocks as shown in the table below.
Bus Connector
Connect your adapter to the PROFIBUS DP network by attaching a
bus connector to the female 9 pin D-Sub connector on the front of
the module.
IMPORTANT
For detailed information on the topology and
cabling for line B, see the PROFIBUS Standard
(DIN 19245 Parts 1 & 3, Issue 1994).
Equipment Type Catalog Number Part Number
Drop cable Sprecher + Schuh PTLĆ2, PTLĆ4, or PDCĆ10 87.890.282Ć10
TĆjunction connector Sprecher + Schuh PTSĆ0 87.890.276Ć01
Bus segment cable Sprecher + Schuh none 299.257.001
Bus segment 1m Sprecher + Schuh PCBĆ10 87.890.281Ć10
Connector Sprecher + Schuh none 87.890.283Ć01
Termination Block Sprecher + Schuh PCEĆ0 87.890.284Ć01
More Information...
Cabling and Equipment
Required for Line B Type