MegaTec Net485-Y Ethernet Device Server

Folasaga

Vaega

Net485 is to convert RS232 signals of [MegaTec] and other protocols to RS422 or RS485 signals.

Vaega:

1. CPU is ARM 266MHz 32Bit, system clock is 208MHz, flash memory is 4M, SDRAM is 16M, and built-in watchdog.
2. Net485 normal operating temperature and humidity range is 0℃ to 50℃ and 5% to 95%.
3. FCC, Class B, CE, Rosh approved.

Fa'amatalaga Malosiaga

Aitema	Laiti	maualuga
DC sao Voltage	+5.3V	+40V
DC Input Current		3W Maualuga

Pin Tofiga

Pin	Faʻasalaga / Galuega	Fa'amatalaga
P1 GND	GND	PIN eleele
P2 Power In	Ulufale	DC mana fa'aoga
P3 RS232_TXD	Tuuina atu	+5.5V and -5.5V Voltage maualuga mo RS232
P4 RS232_RXD	Ulufale	-3V to -15V for logic ‘1’, +3V to +15V for logic ‘0’
P5-P7 No USE
P8 SNMPSIG		NET485 card plug in detect, connect to PIN 10
P9 GND	GND	PIN eleele
P10 SNMPSIG		NET485 card plug in detect, connect to PIN 8
P11 RS232_DCD	Ulufale	+/-3V to +/-15V for RS232
P12 RS232_DTR	Tuuina atu	+5.5V and -5.5V for RS232
P13 RS232_DSR	Ulufale	+/-3V to +/-15V for RS232
P14 RS232_RTS	Tuuina atu	+5.5V and -5.5V for RS232
P15 RS232_CTS	Ulufale	+/-3V to +/-15V for RS232
P16 RS232_RI	Ulufale	+/-3V to +/-15V for RS232
P17-P26 No Use

Fa'amatalaga Fa'ailoga

Fa'aulufalega 

PARAMETER	TULAGA	MIN	TYP	MAX
Sao Voltagu lautele		-25V		+25V
Fa'alumaina Fa'aulu maualalo	TA=±25℃	+0.6V	+1.2V
Uluai Fa'aulu	TA=±25℃		+1.5V	+2.4V
Input Hysteresis			0.3V
Fa'asagaga Fa'aulu	TA=±25℃	3k ohm	5k ohm	7k ohm

Fa'aliliuga Fa'amatalaga

PARAMETER	TULAGA	MIN	TYP	MAX
Galuega Faatino Voltagu Sulu	All transmitter outputs loaded with 3k ohm to ground	±5.0V	±5.4V
Fa'asagaga Fa'atino	TA=±25℃	300	10M
La'au Pu'upu'u			±35mA	±60mA
I le taimi nei

Fua Fa'amatalaga

Net485-Y Pepa Totonu 

Fua	137.7mm(L) × 60mm(W) × 43.0mm(H)
mamafa	53g±2g
Feso'ota'i	26 pine tamatamailima auro

Net485-Y Kata i fafo 

Fua	156mm(L) × 82mm(W) × 32mm(H)
mamafa	195g±2g

Net485-Y Adapter

Fua	42.15mm(L) × 31.08mm(W) × 17.38mm(H)
mamafa	12.8g±2g

Fa'aoga

Falegaosimea

Net485 will be set according to the parameters related to the receiving data side provided by the user before shipping. Because the Net485 parameter setting requires the user to use a direct serial cable (1 to 1, 2 to 2… 9 to 9) connected to the computer side and set up using HyperTerminal. The external card requires the user to remove the case. To see the advanced user settings,
Fa'amolemole fa'afeso'ota'i la matou lagolago fa'apitoa.

E manaʻomia e tagata faʻaoga masani ona tuʻuina atu faʻasologa o loʻo i lalo i le pito e maua ai i la matou kamupani e fai ai fale gaosimea;

	RS232	RS422	RS485
Tulaga o masini	01(Toe Taua)	01	01
MODBUS Connection Mode	RTU (Taua Fa'atatau)	RTU	RTU
RS Baud Rate	9600(Toe Taua)	9600	9600
RS So'oga Ituaiga	RS232 (Default Value)	RS485	RS485
Half Duplex / Full Duplex	Full Duplex (Default Value)	Full Duplex	Half Duplex
Feso'ota'iga Fa'asologa Tulaga Fa'aeletise	Faiga masani (Toe Taua)	Faiga masani	Faiga masani

Talosaga

Users can connect Net485 to UPS and MODBUS receiver or PC for testing.
O mea o lo'o mulimuli mai o se fa'ata'ita'igaample of [Modscan] software testing.

If you connect Net485 to PC side for testing, you need to prepare your own RS485 to RS232 cable. You can refer to the following diagram for the connection method.

1. Run [Modscan], click Connection, select the PC serial port connected to the Net485 output, and Modbus related settings. As shown in the figure.
   
   
2. Select the holding register and start address to view o fa'amaumauga na maua.
   
3. Look up the UPS data represented by the corresponding address bit in the provided register address file.

Pepa / Punaoa

MegaTec Net485-Y Ethernet Device Server [pdf] Tusi Taiala Net485, Net485-Y, MegaTec 2023-7-6, Net485-Y Ethernet Device Server, Net485-Y, Ethernet Device Server, Device Server

Fa'asinomaga

• Tusi Taiala