User`s manual

Specifications
28 User’s Manual - DSP19.2 Fast Poll Modem
RS-232 (DTE) Interface
Table B-2. RS-232 (DTE) Interface
Signal Name Modem Input/Output DB-9 Pin Description
DCD Output 1 Data Carrier Detected
RXD Output 2 Receive Data
TXD Input 3 Transmit Data
SG
⎯
5 Signal Ground
DSR Output 6 Data Set Ready
(Modem Ready)
RTS Input 7 Request To Send
CTS Output 8 Clear To Send
RS-485 (DTE) Interface
Table B-3. RS-485 (DTE) Interface
RJ-11 Pin Number… Corresponds to Signal Name Modem Input or Output
1 Not Used NA
2 RxD+ Output
3 RxD- Output
4 TxD+ Input
5 TxD- Input
6 Not Used NA
Environmental Specifications
Operating temperature:
-40 to + 85
o
C
Storage temperature:
-40 to +125
o
C
Operating humidity:
5 to 95 %, non-condensing
Line isolation:
3750 V RMS
Surge protection:
Leased line up to 15K VA