Major Hardware Components
Card Cage Assemblies
Page 4-6 MDE-3664B TRIND® Start-up, Service, and Parts Manual · June 2013
AC EMI Line Filter (Q10895)
AC Electromagnetic Interference (EMI) Line Filter, is a Corcom dual T section RFI power
line filter. These filters are well suited for low impedance loads where noisy RFI environments
are present. They control pulsed, continuous and/or intermittent interference, insuring
protection of the TRIND equipment from power line noise in addition to protecting the line
from equipment noise.
R20600 and R20719 Transformers
R20600-G1 Transformer is used in
the T20229-G2
Card Cage Assembly. R20719-G1
Transformer is used in the T20606-G2 LF/UHF Full System, and Enhanced Gateway System
Card Cages. Each transformer performs step down of 120 VAC to a usable level for the RFID
Power Supply. The R20600 steps 120 VAC down to 60 VAC, which is used by the
T20138-G1
Power Supply Board. The R20719 steps 120 VAC down to 24 VAC, which is used by the
T20314-G1
Power Supply Board.
T20138 and T20314 Power Supply Boards
T20138-G1 Power Supply Board is used in the T20229-G1 Full System Card Cage Assembly.
T20314-G1 Power Supply Board is used in T20606 line of Card Cages. The supplies take the
output of their respective AC to AC transformers and make the proper Direct Current (DC)
voltages for use by the TRIND system components. Both supplies utilize a gate-driven Metal-
oxide-semiconductor Field-effect Transistor [MOSFET (for +22 VDC)] and a buck switched
mode power supply (for +5 VDC). Both supplies monitor the current on the output to turn off
the gate drive, rather than fail permanently, should one of the TRIND system components
develop a voltage problem. This arrangement allows for any of the outputs to be shorted
directly to ground with out harming the power supply because it turns itself off until the
problem is discovered and removed, and AC power is cycled.
T20138 Power Supply Board
This board has jump-jack locations to set the dither sync (refer to
on
)
address for the TRIND unit, with a 10-position ribbon cable (at P173) that goes to the DCB
(J6). These addresses only matter to the site itself, not the pump or CRIND.
Figure 4-6: T20138 Power Supply Board
5 V
GND
22 V
GND
GND
5 V
22 V
GND
Note: P176, P177, and P178 are identical.
JP1 through JP4:
must be unique
address for each
dispenser at site
22 V
5 V
5 V