50 IconMaster Installation and Configuration Manual
Chapter 2: Installation
• 8 data bits
• No parity
• 1 stop bit
• No flow control
DB-9 (RS-232 and RS-422) Connectors
Note: RS-232 pinouts of port A are opposite to those of ports B, D, and E. The
use of straight-through versus null-modem cables must be carefully considered.
Table 2-7. ICONM-BO-V DB-9 Pinouts
Breakout
DB9 Pin
Port A
RS232
Port B, Port E
RS232 / RS422 Selectable
Port C
RS422
Port D
RS232
RS-232 Connection
RS-422
Connection
1 Frame Ground Frame Ground Frame Ground
2 TxD RxD (Data received by
IconMaster)
Ta Tx- (Data sent by
IconMaster)
Ta Tx- RxD
3 RxD TxD (Data sent by
IconMaster)
Rb Rx+ (Data received by
IconMaster)
Rb Rx+ TxD
4 DTR (Data Terminal
Ready) *
Rc (Receiver Common or
Shield)
5 GND Ground Ground GND
6 DSR (Data Serial Ready)
*
Tc (Transmit Common or
Shield)
7 RTS (Request to Send) ** Tb Tx+ (Data sent by
IconMaster)
Tb Tx+
8 CTS (Clear to Send) ** Ra Rx- (Data received by
IconMaster)
Ra Rx-
9 Frame Ground Frame Ground Frame Ground
* DB9 Pins 4 (DTR) and 6 (DSR) are connected internally to GND.
** DB9 Pins 7 (RTS) and 8 (CTS) are not used by IconMaster.
ICONM-BO-V Video Breakout
ICONM-BO-VAB Audio Balanced Breakout
PGM Out
Emerg In 1
AES
A/O 1
A/O 2
RS232/422-C RS232-D RS232/422-E
RS232/422-BRS232-A
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