User's Manual
Table Of Contents
- Introduction
- Contacting BW Technologies
- Safety Information - Read First
- Getting Started
- The Personnel Alert Base Station
- Installation
- MODBUS Wiring and Configuration
- Baud Rate and Parity Configuration
- Setting the Dip Switch Addresses
- Alarm Relay Contact Wiring and Configuration
- Wiring DC Power
- Testing Manual Alarms
- Radio Frequency (RF) Optimization
- Setting the Badge ID
- Area System Planning
- Alarms (TBD)
- Maintenance
- Troubleshooting (TBD)
- Replacement Parts and Accessories
- Specifications
Personnel Alert: Base Station
Baud Rate and Parity Configuration
4-Wire MODBUS (full-duplex)
1. Connect the positive RS-485 lead for data
transmission to the terminal marked +T/Rx on TB2.
Ensure that the connection is routed
to the base
station.
2. Connect the negative RS-485 lead for data
transmission to the terminal marked -T/Rx on TB2.
Ensure that the connection is routed
to the base
station.
3. Connect the positive RS-485 lead for data
transmission to the terminal marked +/Tx on TB1.
Ensure that the connection is routed
from the base
station.
4. Connect the negative RS-485 lead for data
transmission to the terminal marked -/Tx on TB1.
Ensure that the connection is routed
from the base
station.
Note
For 4-wire operation on the main board, jumper pin
“JP1” must be removed. Place it over one of the
other pins so that the jumper is an open circuit.
Baud Rate and Parity Configuration
The option dip switches configure the Baud rate and the
parity. Refer to the following tables.
Note
The default Baud rate is set to 19200. The default
parity is set to no parity, one stop bit.
Table 9. Baud Rate
Dip Switch Position
Baud Rate
D1 D0
19200 Open Open
9600 Close Open
4800 Open Close
2400 Close Close
Table 10. Parity Configuration
Dip Switch Position
Parity Checking
D3 D2
No parity, one stop bit Open Open
No parity, two stop bit Close Open
Odd parity Open Close
Even parity Close Close
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