Installation Guide
Table Of Contents
- Contents
- Introduction
- Assumptions
- Getting Technical Assistance
- Antenna Installation
- Reader Mechanical Installation
- RS-485/Ethernet Communication Selection
- RS-485 Impedance Matching Selection
- Serial (RS-232) Communication Setup
- Ethernet LAN Communication Setup
- Installing the RF Command Suite Application
- Configuring the IP Address
- Digital (TTL) Input/Output Setup
- Setting Digital Input for Reader Duty Cycle Control
- Transmit Power Calibration
- Transmitter and Antenna Configuration
- Manual Field Power Calibration - FCC Readers
- Manual Field Power Calibration - ETSI Readers
11
RS-485/Ethernet Communication Selection
The MP9320 is equipped with both RS-485 and Ethernet communication ports.
However, only one can be selected at a time. The reader is typically shipped with
Ethernet communication enabled. To enable RS-485 communication, perform the
following:
Caution - ESD
The following procedures involve electrostatic discharge sensitive components. ESD
protection is required. Damage to the reader can occur if proper ESD equipment such as
grounded wrist straps and ESD protected work surfaces are not used.
1. Disconnect all power and communication cables from the reader.
2. Remove the outer reader cover by removing the 8 screws on each side and
carefully lifting the cover straight up.
3. Locate Jumper J4 on the connector end of the digital board (top circuit board).
4. Move the jumper to Pins 1-2 (Pin 1 is closest to the end of the board).
5. To re-enable Ethernet communication, move the jumper to Pins 2-3.
6. Replace the cover and the 16 screws.
RS-485 Impedance Matching Selection
The MP9320 2.5 and later readers are equipped with RS-485 impedance matching jumpers.
These jumpers configure the RS-485 link for a given topology. To configure the RS-485 link,
perform the following:
Caution - ESD
The following procedures involve electrostatic discharge sensitive components. ESD
protection is required. Damage to the reader can occur if proper ESD equipment such
as grounded wrist straps and ESD protected work surfaces are not used.
1. Disconnect all power and communication cables from the reader.
2. Remove the outer reader cover by removing the 8 screws on each side and carefully lifting
the cover straight up.
3. Locate jumpers J1 and J2 on the the connector end of the digital board (top circuit board).
4. Install the jumpers as follows:
• To set the RS485A signal to a logic high (3.3V), install Jumper J1.
• To set the RS485B signal to a logic low (0V), install Jumper J2.
• To set the RS485A to 1.76V and the RS485B to 1.53V, install Jumpers J1 and J2.
These jumpers assure a differential voltage of 200 mV.