This project contains information and design files for systems designed
for testing the CONV-TTL-RS485 boards.
As the CONV-TTL-RS485 is very similar to the CONV-TTL-BLO and the RS-485
output connectors are such that wrong (e.g., blocking) signals can not
be plugged into the rear-panel, no further stress testing has been
performed on the CONV-TTL-RS485
The CONV-TTL-BLO stress test page is given below as a reference:
Production Test Suite (PTS) is the environment designed for running
functionality tests on boards at the manufacturing site, right after
production. It assures that boards comply with a minimum set of quality
rules in terms of soldering, mounting and PCB fabrication process.
The PTS system is usually contained within a rack containing an ELMA
crate, a laptop with the PTS software installed on it and all other
accessories necessary for running tests.
In the case of the CONV-TTL-RS485, the system needs the RTM
(CONV-TTL-RTM-RS485) module together with a couple of tester cards (see
below) in order to test the RS-485 capabilities of
the cards themselves.
The PTS computer runs some scripts that interact with gateware on the
CONV-TTL-RS485 FPGA to test functionality of on-board
Front module documentation
Documents such as the user guide and the setup guide for setting up the
PTS system inside a 19'' rack can be found here:
Both the front module and rear transition module PTS systems use a
couple of loopback modules which mount on the rear panel. With proper
control exerted by gateware on the CONV-TTL-RS485 FPGA, these modules
are driven to loop pulses from outputs to inputs so as to test the
RS-485 capabilities of the cards.
More details about the tester cards can be found at these links: