HN-1010/1510
Flow Control Indicators
The HN-3500 has flow control indicators for testing and as a way to quickly check
the operation of the adapter. Refer to the illustration below.
The table below describes the function of each LED.
TXD
RXD
DTR
CD
PWR
Name
Red
Red
Red
Red
Green
Color
Description
Transmit Data
Receive Data
Data Terminal Ready
Carrier Detect
Continuous DC power is applied
DB-9 Connector
The HN-3500 is equipped with a DB-9 connector to link the RS-232 interface to a
terminal block for the RS-485 interface. See the following illustration for the signal
description.
? 2000- 2004 Cirronet ? Inc
15
M-2410-0010 Rev A
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