Connection Specifications; A/B Signal Output Type - Sony BL55-RE Bedienungsanleitung

5-2. Connection Specifications

5-2-1. A/B Signal Output Type

The line driver used by Sony Manufacturing Systems Corporation is compliant with EIA-422.
Also, based on the EIA-422 standards, the common mode voltage between the line driver and line receiver
is stipulated as ± 12 V.
(Using the scale when the common mode voltage of ± 12 V is exceeded can damage the scale.)
To prevent problems between the control devices connected to this Sony product, it is recommended that
you connect (shared connection) the signal ground (power supply ground) and set the load resistance to 120 Z.
Twisted pair cables (1 turn/1 inch min.) with a core thickness of at least AWG28 are recommended for the
differential signal cables.
(It is even better if the characteristic differential impedance is the same as the load resistance value.)
Send side
Send side
Power supply ground
(Signal ground)
Line driver side
Receiving power supplied from the controller
Scale
0 V (power supply)
5-2
(E)
DS34C87
Fig. 5-2
+5 V (power supply)
FG
Fig. 5-3
Receive side
Receive side
Load 120 Z
Power supply ground
(Signal ground)
Line receiver side (example)
DS34C86
MC26C32
MC34C86
Controller
Power supply (5 V)
Power supply
ground
FG
BL55-RU