Baker Hughes Panametrics Aurora RM, Manual Addendum

Page: 12 / 17

Aurora Rack Mount Manual Adendum 5
Figure 4: Wiring Diagram for DB-15 I/O connector
Use shielded 18-22 AWG (0.82-0.33 mm2) twisted pair wire for all I/O connections. To ensure compliance to EN 61010
requirements, a shielded cable is required for these connections and the shield must be terminated to the Ground
( ) terminal on the back panel.
For operation on RS-485, 2-wire, half-duplex bus, attach the RS-485 (+) to (+) and the RS-485 (-) to (-). If available,
make a third connection to the RS-485 network common to RTN. Connect the shield wire from the cable to SHD
terminal. For operation on RS-232, connect RS-232 (TXD) to (+), RS-232 (RXD) to (-), and RS-232 (GND) to RTN.
Connect the cable shield wire to SHD terminal.
Note:
The default configuration of the two serial ports as shipped is shown below:
Table 4: RS-232/RS-485 wiring table
Aurora Serial Terminal
Color code (Port 1 Pin) (Port 2 Pin)
White TX + (10) (14)
Red RX - (11) (15)
Green Return RTN (12) (16)
Black Shield SHD (13) (13)
Table 5: Default Serial port configuration
BAUD Rate: 115,200
Parity: Even
ID Note: 1 for Port 1, 2 for Port 2