Chapter 2 SPAN Installation
OEM7 SPAN Installation and Operation User Manual v14
45
EG320N/EG370N
Receiver
Pin
Pin
Name
Pin
Pin Name
Description
16
/RST
–
–
Reset IMU
RST must be high for the IMU to be active.
To enable the IMU when the receiver is powered on, connect this pin to
Pin 1 or Pin 2 of the receiver connector through a 10 kΩ resistor
(recommended).
Can also connect this pin to any stable 3.3 VDC power supply or output
configuration to have more control over when IMU is enabled. When
using this configuration note that:
l
pin 16 must be pulled low for greater than 100 ms to properly soft-
reset the IMU
l
pin 16 has an internal 32-224 kΩ pull-up resistor
17
NC
–
–
Do not connect
18
NC
–
–
Do not connect
19
NC
–
–
Do not connect
20
NC
–
–
Do not connect
For the location of the receiver pins, refer to the
OEM7 Installation and Operation User Manual
For more information about the EG320N, see
on page 213. For information about the
EG370N, see
Connect an OEM-IMU-STIM300 Directly to an OEM7 Receiver
The OEM-IMU-STIM300 can connect directly to an OEM7 receiver using a serial port connection.
The OEM-IMU-STIM300 serial port uses RS-422 signal levels. Since most OEM7 receiver card
ports use LVCMOS signal levels, a RS-422 line driver is needed to convert from LVCMOS to RS-
422. The exception is COM1 on the OEM729 that operates at RS-232 or RS-422 levels.
The OEM-IMU-STIM300 can also connect to any OEM7 receiver using a MEMS Interface Card
(MIC). For information about using a MIC, see
The interface to the OEM-IMU-STIM300 must provide:
l
a Micro-D 15 pin male connector
This connector mates with the connector on the OEM-IMU-STIM300. See
on the next page for the IMU connector pin out.
l
a RS-422 serial port connection to the OEM7 receiver
