Siemens SIMATIC NET PROFIBUS - Manual (Page 165)

Passive Components for RS-485 Networks
4-67
PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000
4.9.2 830-2 Connecting Cable
Uses
The 830-2 connecting cable is a preassembled cable for fast and cost-effective
attachment of PROFIBUS nodes (for example HMI) to programmable controllers
for transmission rates up to 12 Mbps.
Design
The 830-2 connecting cable consists of the PROFIBUS standard cable. It has a
9-pin sub-D male connector with a straight cable outlet at one end and a 9-pin
sub-D male connector with a 90
°
cable outlet at the other. The connector with the
90
°
cable outlet is equipped with a PG interface. The terminating resistors can be
activated in both connectors. The cable is available in lengths of 3 m, 5 m and
10m.
Figure 4-35 830-2 Connecting Cable
Function
The 830-2 connecting cable connects the following:
S
The electrical interface of the Optical Link Module (OLM, OBT) and the
PROFIBUS interface of a PROFIBUS node
S
The electrical interface of two PROFIBUS nodes (OP, programmable controller)