Acrosser AR-B1631ET - Manual (Page 14)

AR-B1631ET User’s Guide
2.2.22 CN4 (RS422 & RS485)
2.2.22 CF1 (NOTE 1)
NOTE 1:
For using both Hard Disk and Compact Flash, you have to use the ATA33 IDE cable.
IF you want to use the ATA66/100 mode with the Hard Disk, you must put the jumper on
JP6 and use the special IDE cable.
The cable is like below：
NOTE 2:
USB connectors (USB1 & USB2) and USB Pin headers cannot be used together. If you
want to use USB connectors, you must take the USB cable on Pin Header.
1
1 RS422TX+/RS485TRX+
2 RS422TX-/RS485TRX-
3 RS422RX+
4
4 RS422RX-
IDE DEVICE
Usually the ATA66/100 cable and Pin 34 are disconnected
between host and device side.
IDE HOST
Usually the ATA66/100 cable
at Pin 34 at host side is
defined as CABLE ID and
connected to ground. The special cable must be connected to this PDIAG signal
from host side to device side.
With special cables, Pin 34 is
defined as PDIAG and
cannot be connected to
ground
PDIAG
PIN34
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