User Manual
ATC-3001 1-port Modbus Gateway
Copyright
©
2011
SHENZHEN ATC TECHNOLOGY CO., LTD.
29
B.2 Software Specifications
Item
Specifications
Protocol
§
TCP/IP, UDP, HTTP, SNMP, ARP, Telnet, ICMP, BOOTP, DHCP
Configuration
§
Configuration information for both TCP/IP and serial ports is kept in
the EEPROM.
§
Configuration utilities of Windows 95/98/2000/NT/XP/2003 are
provided for configuring settings.
Internal Buffer Size
§
TCP receiving buffer size = 8K bytes
§
TCP transmitting buffer size = 16K bytes
§
RS-232 or RS-485/RS-422 receiving buffer size = 4K bytes
§
RS-232 or RS-485/RS-422 transmitting buffer size = 4K bytes
B.3 Panel Layout and Connector Pin Assignments
B.3.1 Pin Assignments
DB9 Pin Assignments
The pin assignments of DB9 connector on ATC-3001 are shown in the following table:
Pin#
RS-232
Full Duplex
for ATC-3001 Model
1
DCD
2
RXD
3
TXD
4
DTR
5
SG (Signal Ground)
6
DSR
7
RTS
8
CTS
9
N/A
Terminal Block Pin Assignments
The pin assignments of Terminal Block connector on ATC-3001 are shown in the following table:
Pin#
RS422/4-Wire RS-485
Full Duplex
For
ATC-3001
2-Wire RS-485
Half Duplex
For
ATC-3001
1
T+
Data+
2
T-
Data-
3
R+
NC
4
R-
NC