UDS-10B Serial Interface
5-3
Serial Interface
The UDS-10B has a female DB25 DCE serial port that supports RS-232 and RS-485/422
serial standards (selectable) up to 115.2 Kbps.
Figure 5-2: UDS-10B Serial Interface
Note: For RS-485 2-wire functionality, pins 14 and 21 and pins 15 and 22
must be connected to each other.
TX- (out)**
1
14
GND
DCD (out)
RTS (in)
DSR (out)
RX (out)
13
25
TX (in)
RX+ (in)**
RX- (in)**
TX+ (out)*
DTR (in)
CTS (out)
(RS-485/42
(RS-232C)
*The Device Server can alternately be powered up via the seria
port using one of these pins.
*Reg. +5VDC
Unreg. 9-30VDC
**The minus sign (-) is sometimes represented as A (e.g., TXA)
The plus sign (+) is sometimes represented as B (e.g., TXB).
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