Siemens SIMATIC NET S7-1200 Compact Operating Instructions

1.3 Introduction
What is possible?
The CSM 1277 device allows for the cost-e󹪜ective installation of Industrial Ethernet bus and star
structures with switching functionality.
Note
It is not possible to use a CSM 1277 switch in a redundant ring because it does not support
redundancy.
Introduction
1.3 Introduction
Compact Switch Module CSM 1277
Compact Operating Instructions, 06/2022, A2B00079397-02 7

Siemens SIMATIC NET S7-1200 Specifications

General

Supply voltage	24 V DC
Protection class	IP20
Product type designation	S7-1200
Transfer rate	10/100 Mbit/s
Number of ports	4
Power consumption	2.5 W
Operating temperature	0 °C to 60 °C
Mounting type	DIN rail
Switching capacity	1 Gbps