Page 16 of 39 RTE6701-OEM Integration Manual VC27U V1.03 DRAFT.doc
6 PCB Layout and Connections
The PCB mechanical layout is shown in Figure 2 for the current version (59-2004-06 and 59-2004-07) and
Figure 3 for the previous version (59-2004-01). The connectors are as follows:
J1 Programming connector, not normally used by OEMs.
J2
CCD connection (2 x 5 way dual row 0.1 inch header), cable 60-7616-01 read head link is used
on J2 to connect to the 10 pin header on the optical read head. This cable should not be
longer than 10 cm. The cable is straight through (i.e. pin 1 to pin 1, etc.). Pin 1 on the read
head is marked by a red dot (towards the bottom of the read guide). A shielded version of
this cable is available under 3M RT part number 59-1064-01. See Section 7.3 and
Appendix C – Read Head Cable for more information.
J3
USB port connections (2 x 3 way dual row 0.1 inch header). This connector supplies power and
USB signal data. The pinout is as follows:
Pin Signal Colour USB-A Pin
1 +5V Red 1
2 USB Data plus Green 3
3 Ground Black 4
4 USB Data minus White 2
5 Shield (connected to GND) Shield Shield
6 Not connected - -
J4
Optical read head illumination connector (5 way 0.1 inch pitch single row header) – the three or
five way flying lead from the optical read head fits here, pin 1 to pin 1.
J5
Power supply connector (4 way 0.1 inch pitch single row header), pins 1 and 4 are +5V, pins 2
and 3 are signal ground. The +5V should be suitable for integrated circuits with a volt tolerance
of ± 0.25 V. This connection may be used to supply power to the module but generally the
USB connector J3 is used. By using J5 the power to the main electronics can be turned off to
minimise consumption when not reading whilst maintaining connectivity to the USB interface.
Contact your nearest 3M global technical support office for more details.
J6
This is the jumper block, each jumper link consists of a pair of pins with 10 jumpers in total.
The usage for jumpers 1 to 8 is dependent on the firmware loaded into the reader (see
Section 9), jumper 9 must never be used and jumper 10 disables the watchdog and
should only be used for debug. The jumpers are on a 2 mm pitch.
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