Page 5
1.4.1 RS‑232 interface
Fig.2: DB9, pins
UCAB232 provides all RS-232 signals.
The description of RS-232 signals is given bellow in the
table:
Pi
n
Name
I/O
Description
1
DCD
IN
Data Carrier Detect
2
RD
IN
Receive Data
3
TD
OUT
Transmit Data
4
DTR
OUT
Data Terminal Ready
5
SG
PWR
Signal Ground
6
DSR
IN
Data Set Ready
7
RTS
OUT
Request to Send
8
CTS
IN
Clear to Send
9
RI
IN
Ring Indicator
Table 1: RS-232 signals description
Data rate
The guaranteed data rate is within the range of 300 Baud
to 250 kBaud,
The UCAB232 converter allows to communicate typically
over 500 kBaud. However, this data rate is not
guaranteed and could depend on temperature and an
external signal quality.
1.4.2 LED indicators
UCAB232 is equipped with two LED indicators.
Red LED: data are being sent from PC to a RS-232
connected device
Green LED: data are being sent from a RS-232 connected
device to PC
1.4.3 Standby
The UCAB232 converter fully supports PC standby mode
(sleep).
1.4.4 Resistance to
external influences
The operating temperature range is between 0 °C to
+70 °C.
The converter complies the IP20 specification.
