458-3SL/3SLA/3SLB or 458-CM
Size: 8 MB
Release Date: 04/2015
Instructions: Updating the Control
Module Firmware through the Serial Port
Please become familiar
with this procedure before attempting to reprogram a Control Module.
Step 1 - Verifying the Currently
Installed Firmware Revision
To check which revision of software is loaded on the
Telebyte Control Module, use the id command from a data terminal or a PC
connected via the RS-232 port.
To use the PC, use the HyperTerminal program. It can be found at the following locations:
Select a baud rate of 9600 (Bits per second) to match the
Control Module settings. Select databits
= 8, parity = none, stop bits = 1, and flow control = none and then press "OK."
To send the
id command, enter "id" and
press "Enter." The Control Module
software revision appears on the screen.
Note: After upgrading the software,
the echo command may become disabled and it may seem as if there is no
communication. To restore the echo feature, replace the id command above with
"ee" to send the ee command.
Step 2 - What You Will Need To Update
the Control Module Firmware
A PC with an RS-232 serial port (e.g., com
port 1) and Windows 95 (minimum).
A standard serial cable to connect the PC
to the Control Module. (An example of this is a cable with a DB-9 male
connector on one end and a DB-9 female connector on the other end).
3 - Obtaining New Software
- Download the software by clicking on the download button at
right. When the download window appears, click Save to begin the download process. Save
the zipped file to the desktop.
4 - Upgrading the Control Module Software
Connect the 458-3SL/3SLA/3SLB or 458-CM to the PC with RS-232
communication using the RS-232 serial cable.
The 458-3SL/3SLA/3SLB or 458-CM must be put into the BOOT LOADER mode
in order to upgrade the software.
To initiate BOOT LOADER mode, first turn the power off to the unit,
then turn the power on while holding C button on the keypad. The display
should change to a mode that displays:
LCD screen in BOOT LOADER mode
This screen should remain on in the Boot-Loader mode
until the power is removed.
If the display does not change as indicated,
stop the procedure and contact
5 - Verify Installation