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ZP9D-115RM-LR Radio Modem
3
SERIAL CONNECTIONS
RS-232
RS-232 is always present on DB9.
* Pins 1 & 6 are not used. They are tied together.
Wiring Terminal Identification
DB9F Pin
Signal Name
Direction
1
Data Carrier Detect*
---
2
Receive Data
Out
3
Transmit Data
In
4
Data Terminal Ready
In
5
Signal Ground
---
6
Data Set Ready*
---
7
Request To Send
In
8
Clear To Send
Out
9
Not used
---
Note
: The DTR input is used to put the
radio into sleep mode. The radio sleep
option must be enabled first using the
configuration software. Once enabled,
lowering the DTR signal will put the
radio in sleep mode and raising the
DTR signal will put the radio in idle
mode, ready to receive or transmit data.