Connecting Rs-485 - Chroma 62000H Series Operating & Programming Manual

Programmable DC Power Supply 62000H Series Operating & Programming Manual
Pin No.
1
2
3
4
5
6
7
8
9
Table 5-2 lists the connection between PC (IBM compatible) and 62000H Series DC Power
Supply.
Pin No.
1
2
3
4
5
6
7
8
9
"N.C." stands for "Not Connected".

5.1.4 Connecting RS-485

The default transmission baudrate of 62000H Series is set to 115200 and the parity check is
set to None. The RS-485 interface is a half-duplex two-wire differential signaling transmission
and only RS485_P and RS485_N signals are required for data transmission. The connection
is the same as RS-232C that is a 9-pin D type male connector. Table 5-3 lists the pin number
and assigned signal of RS-485 connector.
5-2
Table 5-1
INPUT/OUTPUT
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INPUT
OUTPUT
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Table 5-2
IBM PC
DCD
RX
TX
DTR
GND
DSR
RTS
CTS
"N.C."
Table 5-3
Pin No. Description
1
2
3
4
5
6
7
8
9
Description
"N.C."
RxD
TxD
DSR
GND
DTR
CTS
RTS
"N.C."
62000H
"N.C."
RX
TX
"N.C."
DGND
"N.C."
"N.C."
"N.C."
"N.C."
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---
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RS485_P
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---
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RS485_N