CSI CARDPIN1, Installation Manual

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Watermark Reader Support Installation Guide
18 CSI Readers
Watermark Reader Support
The DPU-7910A and DPU-7920 series controllers support two Watermark Magnetics
card readers (model numbers 1305LO and 1306LO) made by Thorn Secure Science
International. Data from the reader is presented through a 4-wire interface using power,
ground, data, and clock.
Watermark Data Format
The Watermark data format for the reader is shown below:
✦
Padding zeroes
✦
Sync Bit
✦
Start Sentinel 00111 11101
✦
Ten Digits BCD encoded digits with odd parity
✦
EOM Bits
✦
Padding Zeroes
The following is a sample Watermark data string.
Watermark Field Output Installation
The cable from the reader connects to the DPU in one of the following ways:
✦
When connecting the reader to a DPU-7910A series controller, the cable from the
reader connects to a CSI breakout box. The breakout box then connects to the DPU
reader ports (1A, 2A, 1B, or 2B) using on RJ45 CSI modular reader cable
(CBL063).
✦
When connecting the reader to a DPU-7920 series controller, the cable from the
reader can be connected directly to TB3 or TB4 on the DPU.
Use the following steps to connect a Watermark reader to a breakout box or directly to
the DPU-7920 (see
Figure 12 ).
1. Connect terminal 4 (DATA) of J2 to terminal 3.
2. Connect terminal 5 (Clock) of J2 to terminal 5.
3. Connect terminal 11 (+12 VDC) of J2 to terminal 1.
4. Connect Ground, terminal 12 of J2 to terminal 8.
5. Connect the cable shield to a good earth ground and to terminal 2 on the breakout
box.
Padding zeros Sync Bit Start sentinel Ten Digits EOM Bits Padding zeros
000... 11010 00111 11101 11001 00100 000...