Power Input; Rs-485 Serial Interface; Rs-232 Serial Interface; Reset Switch - CTEK Z45 Series User Manual

Power Input

The device requires 9-24v DC. The power input also has reverse polarity protection.

RS-485 Serial Interface

A two-wire RS485 interface is available. TR1- for data coming in and TR1+ for data going
out. It is also recommended to use the one of the available ground pins (GND) to
minimize signal interference.

RS-232 Serial Interface

A complete RS-232 DCE type interface is provided on pins 6-10. The table below shows
the pins and signal direction. To avoid confusion, the corresponding pins for a standard
DB9 connector are also shown.
Signal (Z45x Pin)
DTR (6)
CTS (7)
RTS (8)
RXD (9)
TXD (10)

Reset Switch

The reset switch provides a software reboot of the device.

Default Switch

Perform a factory default by holding the default button for 5 seconds, until the Service
and Link LEDs blink Orange/Red in unison and release. The device will be set to factory
defaults and reboot.

LAN Led

The LAN LED will blink to indicate traffic on the Ethernet port of the device. If there is no
traffic or no cable is plugged-in, then the LED will remain off.

Service Led

The service LED will blink Orange while it attempts to connect with a cellular tower.
Upon success the LED will remain solid. A solid Green LED indicates a good signal level
of -88 dBi or better. Anything less than -88 dBi will result in a Yellow LED to indicate poor
signal.
Z45X SERIES INDUSTRIAL CONTROLLERS - DECEMBER 23, 2020
DB9 Pin Direction
4 Input
8 Output
7 Input
2 Output
3 Input
11