H 7505 (0630)
All rights reserved. Equipment subject to change without notice: 503
HIMA Paul Hildebrandt GmbH + Co KG, P.O. Box 1261, 68777 Brühl
H 7505
H 7505: Multifunctional interface converter
to built up the bus systems:
HIBUS-1 4-wire-bus, HIBUS-L, RS 422, full duplex,
active bus coupling
HIBUS-2 2-wire-bus, RS 485, half duplex,
passive bus coupling
HIBUS-2/HIBUS-2 Repeater
HIBUS-2/HIBUS-1 Repeater
Figure 1: Block diagram
Note The signal designations written at X2 are only valid for the HIBUS-2
connection, otherwise refer to table "operating modes".
Connectors and setting elements (refer also to the block diagram):
S1, S2, S3 Switches for the bus termination resistors
S4 Mode selection switch
S5 Switch for signal crossing (RS 232 C only)
Note Adjust the switches S1...S5 only under the considering of all ESD pro-
tection measures. The direct touching is only allowed for electrostatic
discharged persons.
X1 MIN-D socket 9-poles for HIBUS-2 connection
X2 Plug clamp 14-poles for HIBUS-1 connection and L+, L- supply
X3 MIN-D socket 25-pole for RS 232 C and TTY connection
X4 Plug clamp 6-poles for L+, L- supply
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