Bird Technologies 3129 Display - Manual (Page 34)

18
Figure 9 BPM-E Front Panel Data Connections
Figure 10 DB-9 RS-232 Connector
Item Description
1 3129 Digital Display, front panel
2 3129 Remote computer connector
3 Computer (PC)
Pin Description
1 Carrier Detect, always > +5 C
2 Transmit Output, RS-232 data signal
3 Receive Input, RS-232 data signal
4 Data Set Ready Input, connected but not used
5 Data Signal Ground
6 Data Terminal Ready Output, connected but not
used
7 Clear-To-Send, shorted internally to Ready-To-Send
8 Ready-To-Send, shorted internally to Clear-To-Send
9 Ring Indicator, no connection
1 2
3
Electronic Corporation Model 3129
True Average Power
Mode Units Alarm Reset Remote