Digital Optical 16Tx 3Rx 2vXX#
Functionality#
Transmits up to 16 optical signals, e.g. gate signals.
Receives up to 3 optical signals, e.g. error signals.
The signals are passed through the CPLD first. Here additional functionality can be implemented, e.g. checking for invalid switching combinations or introducing a dead time.
Before first use#
Solder in up to
16 optical transmitters: Broadcom HFBR-1521Z
3 optical receiver: Broadcom HFBR-2521Z
Please refer to this page for detailed Soldering instructions of the receivers and transmitters.
Solder resistors (R14, R19) on the bottom side to connect optical receivers
Program CPLDs with firmware, see Programming the CPLD for details
Known issues#
Warning
When turning off the UltraZohm, the optical transmitters turn on shortly, solder in the pull down resistors to avoid this.
Solder pull down resistors, 2kOhm to each gate signal
Compatibility#
Slots D1 to D4 can be used without limitations
Optical Cables#
Optical Cables of type HFBR-RNSxxxZ are tested and recommended for transmitting the optical signals. The xxx determines the length of the cable in meters.
See also#
Designed by#
Thomas Kreppel (TUM), Eyke Liegmann (TUM) in 09/2019