Moxa EM-2260-CE [20/26] Serial ports

EM-2260 HW User’s Manual Hardware Installation

Serial Ports

EM-2260 Development Kit offers 4 software-selectable serial ports. Each port can be configured

by software for RS-232, RS-422, or RS-485. The pin assignments for the ports are shown in the

following table:

12345

6789

Pin RS-232 RS-422 RS-485 (4-wire) RS-485 (2-wire)

1 DCD TxDA(-) TxDA(-) ---

2 RxD TxDB(+) TxDB(+) ---

3 TxD RxDB(+) RxDB(+) DataB(+)

4 DTR RxDA(-) RxDA(-) DataA(-)

5 GND GND GND GND

6 DSR --- --- ---

7 RTS --- --- ---

8 CTS --- --- ---

Insert CompactFlash Card

EM-2260 Development Kit comes with a CompactFlash socket. A mass storage card is considered

to be a standard attachment to the computer. Thus, when an empty mass storage card is inserted

into the slot, the computer automatically formats it to the FAT system. This process takes a few

minutes to complete. The EM-2260, when a mass storage card is inserted, creates a directory

named “HardDisk” under the root directory and the newly created directory serves a link to the

storage.

There are some CompactFlash storage disks which are not compatible with EM-2260. You could

try the other CompactFlash storage or disable ultra DMA by using the “System Manager” to

change this setting.

2-7