Atest Gaz ProGas 4, User Manual

Page: 11 / 48

www.atestgaz.pl
Figure 4: The construction of the gas detector and its dimensions (H=HW)
4 Input-output interfaces
4.1 Electric interface
Assignment of contacts on the terminal block depends on the device configuration (see details is Section 9).
All possible options of the terminal block layouts are shown on illustrations below.
4.1.1 RS-485 digital communication port
Figure 5: Electric connections for the option with the RS-485 port
Port designation Name Pin Description
X1 RS-485 A, B Signal lines for the RS-485 port
POWER -, + Power supply
4-20 S 4 – 20 mA current output
X2 R1.1 – R3.2 Relays terminals
Table 3: Connections diagram for the option with the RS-485 port
s. 11|27
User Manual: POD-064-ENG R05