Siemens CS 275 manual Technical data and ordering data

This catalog is out of date, see note on page 2

Interface module for 20-m local bus (N-V.24)

Technical data and ordering data

This circuit cancels the electrical isolation of the N.-V.24 interface

Fig. 4/5 20-mA current loop interface with internal constant-current source for transmitter (left) and receiver (right), connection example

Fig. 4/6 20-mA current loop interface with external current loop for trans- mitter (left) and receiver (right), connection example

Technical data

Power supply		DC 5 V
Current consumption		2.4 A
Interfaces
- Base plug		5-V power supply
- Front plug X3		Serial V.24 or
		20-mA current loop interface
		for distances up to 15 or 1000m
- Front plug X4		respectively, 4-wire system
		Redundant 20-m local bus output, open
		collector, asymmetric,
		for connection of a cable connector
		with metal front plug and contact parts
Weight		Approx. 0.75 kg
	20-m local bus		V.24- or 20-mA
			interface
Transmission rate	340 kbit/s (autonomous)		110 bit/s to
	250 kbit/s (remote		9600 bit/s,
	bus connection		can be set on module
	via inductive converter)
Data protection	Horizontal parity (d = 4)		Longitudinal parity
			(d = 2)
Operating mode	Half-duplex		Half-duplex,
			contention mode
Character frame	Bus transfer element		8bit,code-transparent
Authorization for	Token passing principle		DIN 66 020
data transmission			(V.24)

Ordering data

	Order No.
Interface module for 20-m local bus (N-V.24)
with V.24 or 20-mA current loop interface
¯ with parts kit for front plug and installation	6DS1 202-1AB
instructions in German
¯ Without parts kit for front plug	6DS1 202-8AB
Parts kit for front plug	C79458-L437-D1
for interface module 6DS1 202-8AB
with installation instructions in German
KSN-PC coupling software	See Catalog PLT 150
for SICOMP industry-standard PC or
PG 750/PG 770 programmer
Instructions
Interface module for 20-m local bus,	Order No.
V.24- or 20-mA current loop interface
German	C79000-B8000-C3
English	C79000-B8076-C3
French	C79000-B8077-C3
Spanish	C79000-B8078-C3
Manuals
N-V.24: Coupling of non-Siemens
computers to the CS 275 bus system
German	C79000-G8000-C87
English	C79000-G8076-C87

4/6 Siemens PLT 130 . 1994