Teleorigin RB900-Pro, User Manual

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10
D-Sub 15-pin connector
The RB900-Pro terminal is equipped with a D-Sub DE15F 15-pin connector to control
the RS232 interface, RS232 AUX/Debug/MCU/Modem (option) or RS485 Modem/MCU
(option).
Table of DB9 pins:
Pin No. Name Dir Description
1 DCD OUT Data Carrier Detect. Raised by DCE when modem
synchronized.
2 TXD IN Transmit Data (a.k.a TxD, Tx). Sending data from DTE.
3 Boot Modem boot
4 NC - -
5 NC - -
6 RXD OUT Receive Data (a.k.a RxD, Rx). Arriving data from DCE.
7 DSR OUT Data Set Ready. Raised by DCE to indicate ready (optionally
RS485 A)
8 DTR IN Data Terminal Ready. Raised by DTE when powered on. In
auto-answer mode raised only when RI arrives from DCE.
9 GND - Ground
10 NC - -
11 CTS OUT Clear To Send. Raised by DCE in response to RTS from DTE.
12 RTS IN Request To Send. Raised by DTE when it wishes to send.
Expects CTS from DCE.
13 RI OUT Ring Indicator. Set when incoming ring detected - used for auto-
answer application.
14 Reset IN Modem reset
15 NC* - Not connected in standard version*
* - Analog Input 0, 0-10V as an option