[SMS] Sockets and Indication Elements

Sockets and indication elements on a front panel of a device are shown on the picture:

Sockets and indication elements on a back panel of a device are shown on the picture:

Reset Button

Reset button is designed for resetting parameters to factory values. To reset parameters press a Reset button with a keen object and hold it during a device turning on.

SIM Slot

A SIM Card slot is designed to install a SIM card. A SIM card is installed contacts down. A truncated edge of a SIM card should be inside a device. Correct installation of a SIM card is shown on the picture.

GSM OK LED

When lighting, it means a successful connection to a GSM network and readiness to receive/send SMS messages.

GSM ANT Socket

A GSM ANT socket is designed for connecting an external GSM antenna to a device.

LAN Socket

An Ethernet 10/100 BASE-T port is used for connecting to a network.

An Ethernet port has two LEDs. The left one – CPU, when lighting, it means a device is turned on and when blinking it means transferring packages to a network. The right one – Link, when lighting it means having a link on the port, and when blinking, it means receiving packages from a network.

EXT BAT STATUS Terminal Block

A EXT BAT STATUS terminal block is designed to connect IO STATE lines of a NetPing mini-UPS device.

Terminal 1 –. GND

Terminal 2 – IO Line 2

Terminal 3 – IO Line 1

Logic level 0 – no more than 0.3 V. Logic level 1 – no more than 0.7 V. A maximum allowable voltage is 5 V.

Electric parameters of IO lines

In the «output» mode:

• the voltage of logic «1»: maintains +3,3V 2mA (is not used as the output);
• the voltage of logic «0»: maintains 0 V, 2 mA (is not used as the output).

In the «input» mode:

• voltage of logic «1»: > 2,31 V;
• voltage of logic «0»: < 0,99 V.

Equivalent Circuit

+12V Socket

+12V socket is designed to connect an external power supply unit. A power supply socket polarity: “+” in the center.