STC Smartscan NG2, Manual

Page: 53 / 133

EUD-2018086-00 Rev.3, SmartScanNG² User's Guide for Wayside Enclosure Components, 14 May 2021
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6.1.1 MPRR
TransCore's Multiprotocol Rail Reader (MPRR) is a fully integrated, self-contained 902- to 928-
MHz wireless radio frequency identification (RFID) reader that is specifically designed for rail
applications.
The MPRR has a single RF output that can be multiplexed with up to four
antennas. Unused antenna ports should be terminated into a 50 Ohm terminator.
Check Tag
Connector
Communications/
Power Connector
PORT-0 PORT-1 PORT-2 PORT-3
Power and serial communications are brought in through the DB15F connector.
Power Supply Current Requirements:
Supply
(RF On) Worst Case Maximum
Current at 68°F
(RF Off) Standby Operating
Current at 68°F
16 to 20V AC 1.7 A at 18V AC 1 A at 18V AC
16 to 28V DC 1.7 A at 18V DC 1 A at 18V DC
MPRR Cable Assignments
Pin No. Color Signal
1 Black Sense0
2 White Sense1
3 Red +24V DC
4 Green +24V DC
5 Orange +24V RTN
6 Blue +24V RTN
7 White/Black Lock
8 Red/Black Xmit Data
9 Green/Black Rec Data
10 Orange/Black Lock RTN
11 Blue/Black Signal GND
12 Black/White RTS
13 Red/White CTS
14 Green/White Signal GND
15 Blue/White Signal GND
1
1
5
9
8
SIGNAL GND 15
SIGNAL GND 14
CLEAR TO SEND 13
REQUEST TO SEND 12
SIGNAL GND 11
LOCK RTN 10
RECEIVE DATA 9
8 TRANSMIT DATA
7 LOCK
6 +24V RTN
5 +24V RTN
4 +24V DC
3 +24V DC
2 SENSE1
1 SENSE0