2 ETHM-1 SATEL
3 Electronics Board
Fig. 1. Module electronics board.
terminals:
+12V - power input (+12 V DC).
COM - common ground.
TMP - tamper input (NC). If not used, it should be connected to the common
ground.
A_RS485_B - unused terminals.
DTM - data (communication bus).
CKM - clock (communication bus).
RS-232 port.
PWR/LOG LED:
– lit – power supply present;
– blinking – control panel is being programmed or operated by means of the module.
BUS ACT LED blinking when data exchange with the control panel is going on.
ADR pins for setting the module address (see SETTING THE ADDRESS).
socket for connecting the module to Ethernet (TCP/IP) network. The socket has two built-
in LEDs. The green one indicates network connection and data transfer, and the yellow
one – the negotiated transmission rate (ON: 100 Mb; OFF: 10 Mb).
4 Installation and Start-up
Disconnect power before making any electrical connections.
The device is designed to be used only in the local area networks (LAN). It must
not be connected directly to the public computer network (MAN, WAN).