Fairbanks X SERIES PR 5410 Process Indicator - Manual (Page 47)

Section 3: Installing the Instrument and Plug-In Cards
10/08 47 51207 Revision 1
3.4.10 PR 1721/32 Interbus Interface
The Interbus interface PR 1721/32 is a plug-in card for installation in Slot 4; see Chapter 3.4.1.
The interface is based on the Interbus chip technology and enables transfer rates of 500 kbit/s and
2 Mbit/s.
Internal
connection: 34-pin connector on flat cable, only
for Slot 4
External
connection: Standard IBS 9-contact D-Sub
socket OUT and D-Sub plug IN in
retainer plate
Bus In Bus Out
Transfer rate: 500 kbit/s or 2 Mbit/s, selectable
Topology: Bus as a closed ring
Protocol: INTERBUS-S master-slave
fixed telegram length, deterministic
cyclical process data transmission
with max. 10 words I/O.
Transport: EIA RS-422, cable-bound
Cable: Interbus, color: green
3x2 twisted pairs, common shield
Cable impedance: 150 ohms
Lead termination:
Not required, due to active ring
topology
Certificates: From Interbus Club e.V.:
Compatibility with Interbus standard
IEC 61158 (Parts 3 to 6)
EN 50254 (DIN 19258)
Suitable for industrial applications
CE, UL & cUL
Dimensions
(LxWxH): 87 x 55 x 15 mm Electrical isolation: Yes, optocoupler and DC/DC
converter
Weight: 125 g Cable length: 400m (between two remote bus
sharing units). Overall length: 13 km
With Bus OUT , 5 and 9 must be bridged if another slave follows.
Connecting diagram for a master with three slaves.