8.4 Firmware Update via Q-Conn
The user’s host computer and the TLS are connected together using a NULL modem
serial cable. This cable must have female DB-9 connectors at each end and wiring
such that pins 2 and 3 are crossed over and pins 5 are connected to each other at both
ends. See Table 8-4.
User’s
Host
Computer
Qualstar
TLS
Library
Serial
Port
Serial
Port
RS-232 Serial Cable
Figure 8-6 Host Computer Connected to TLS
8.4.1 RS-232 Cable Wiring
User Host or PC
RS232 Serial Female DB-9 Connector
TLS Library
RS232 Serial Female DB-9 Connector
Signal Name
Pin
Pin
Signal Name
Receive Data
2
3
Transmit Data
Transmit Data
3
2
Receive Data
Ground 5
5 Ground
Table 8-4 RS-232 Cable Wiring Requirements
8.4.2 RS-232 Serial Communications Parameters
Communication Parameter Setting
Baud Rate
9600
Parity None
Data Bits
8
Stop Bits
1
Table 8-5 RS-232 Serial Communication Parameters
8.4.3 User Terminal Software Setup Example
Windows 9x and NT users can use the Communications accessory program, Hyper-
Terminal. Use the
File\Properties
menu selection to configure the application for
direct communications. Select the appropriate communications port. See Figure 8-8.
8-8 Firmware
Updating
501380 Rev. B
