Specifications
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RS-232 (DTE) Interface

Signal Name Modem Input/Output DB25 Pin Description
Earth GND 1 Earth Ground
TXD Input 2 Transmit Data
RXD Output 3 Receive Data
RTS Input 4 Request To Send
CTS Output 5 Clear To Send
DSR Output 6 Data Set Ready
(Modem Ready)
SG 7 Signal Ground
DCD Output 8 Data Carrier
Detected
DRS Input 23 Data Rate Select
Environmental Specifications
Operating temperature: -40 to + 85o C
Storage temperature: -40 to +125o C
Operating humidity: 5 to 95 %, non-condensing.
Line Isolation: 3750 V RMS
Surge protection: Leased line up to 15K VA