2
INT-IORS / INT-ORS
SATEL
DAT
- data (communication bus).
CLK
- clock (communication bus).
A, B
- RS-485 bus.
Explanations to Fig. 1:
LED indicators of the status of individual relays:
red LED ON
– the relay is inactive,
green LED ON
– the relay is active.
LED indicating the status of communication with the control panel:
ON
– no communication with the control panel,
blinking
– communication with the control panel OK.
DIP-switches
used to configure the expander (see “Configuring the expander
).
connector for a SATEL power supply unit (e.g. APS-412).
4. Configuring the expander
Address setting
An individual address must be set in the expander. It must be different from that in the other devices
connected to the communication bus. To set the address, use the DIP-switches 1-5. The switches
have numbers assigned to them. The number for OFF position is 0. The numbers assigned to the
switches in ON position are presented in the table 1. The sum of these numbers is the address set.
Switch (ON position)
1
2
3
4
5
Number
1
2
4
8
16
Table 1.
