Ground, Power Supply, Pin, Rts | Shenzhen High Power Tech H7920

Galaxy H7920 Mobile Router User Manual

Chapter 2: Installation

Connectors’ description:

COM: Serial port (RS-232/485), serial data port or console port.

RJ45: 10/100BaseT auto sense Ethernet interface.

DC: DC power supply interface (+5VDC, +7.5V~+24VDC optional, check the label before power on.)

RESET: Reset button, press and hold for 5 seconds to reset the Galaxy router back to its default factory configurations.

ANT: Antenna interface (SMA female), standard, vehicle antenna, directional antenna optional.

Click “Start” -> “System Tools” -> “Default Setting” to reset the Galaxy router back to its default factory configurations. If you have forgotten the login password, press and hold RESET button for 5 seconds.

The Galaxy router will be back to the factory default configurations if the RESET button is pressed up to 5 seconds.

Management webpage address: 192.168.8.1

Interface and cable connection

COM – Serial Port

COM serial port is standard, DB9 (Female) RS-232(DCE) interface (RS-485 optional); it can be assigned to CONSOLE port or data port.

RS-232(DCE) connector PIN definition:

DB-9 connector (DCE-Female)

PIN	Signal	Description	Direction	Note
1	CD	Carrier Detect	--
2	RXD	Received Data	--
3	TXD	Transmitted Data	--
4	DTR	Data Terminal Ready	--
5	GND	Signal Ground
6	DSR	Data Set Ready	--
7	RTS	Request To Send	--
8	CTS	Clear To Send	--
9	RI	Ring Indicator	--

For CONSOLE mode, the PC serial port that connects the Galaxy router should be configured to 57600, 8, N, 1; and then you can start a Hypertext Terminal at the PC, type commands to manage Galaxy router.

Galaxy router has a feature of the dial-up backup routing. Customer can connect a dial-up modem to the router COM port. A special cable will be required. The detail cable wiring is showed at the below diagram.

Galaxy H7920 Mobile Router User Manual	Chapter 2: Installation

				RS-232 Modem
RS-232 DB9 (Male)			RS-232 DB9 (Male)

	CD	1		1	CD
	CD	1		1	CD
	RX	2		2	RX
	TX	3		3	TX
	DTR	4		4	DTR
	GND	5		5	GND
	GND	5		5	GND
	DSR	6		6	DSR
	RTS	7		7	RTS
	CTS	8		8	CTS
	RING	9		9	RING

RJ45 – Ethernet

It is standard 10/100BaseT Ethernet interface (Auto sense).

DC – Power

DC power supply interface (+5VDC, +7.5V~+24VDC optional, check the label before power on.)

The power adapter output current should be not less 2A; Power supply ripple should be less 300mV.

ANT - Antenna

Standard 5OΩ/SMA RF connector (Female)

For outdoor use, lightning should be considered. We propose to install an arrester between antenna and the ANT interface.

2.4 Ground

To ensure a safe, stable and reliable Galaxy mobile router operation, DTU cabinet should be grounded properly. Connect the Galaxy mobile router cabinet to site ground wire.

2.5 Power Supply

Galaxy router is designed with advanced power management technologies; it can operate standalone. The input DC power voltage is +5VDC (+7.5V~+24VDC optional). You should check the Galaxy router label before power on.