Operating instructions

132
Important Note:
! Only electrical equipment with a maximum voltage rating V
m
of 250 V is permitted to be connected to the Zener barrier.
The voltage rating V
z
of this Zener barrier is 12 V.
Cabling Diagram (Connecting Cable for PC)
(Connecting cable YCC01-03ISM5 – round – DB25-PC)
Diagram for interfacing a computer via a Zener barrier to the scale using
the RS-232C/V24 standard and cables up to 15 m (50 ft) long
Cabling diagram:
Connection assignments for the cable from the Zener barrier to an RS-232 PC
interface.
Round 25-contact D-Submini
connector 12 pin connector
Signals Scale- Shield 1
side
Sgn GND E 7
Barrier- TxD B 3
side RxD C 2 PC side
DTR D 5
CTS H 20
(The other pins are Shield on
not connected.) both sides
Round 9-contact D-Submini
connector 12 pin connector
Signals Scale-
side
Sgn GND E 7
Barrier- TxD B 2
side RxD C 3 PC side
DTR D 8
CTS H 4
(The other pins are
not connected.)