User's Manual

Speedway Revolution Installation and Operations Guide Octane 4.4
Appendix C: Speedway xPortal Installation
Copyright © 2010, Impinj, Inc. 43
Tables B.1 and B.2 further explain the function of each pin.
Table B1: DB-15 Connector Pin-Out
Pin
I/O Name
I/O Function
1
+5V Supply
Reader supplied (not isolated) power
source
2
RS-232 RX
For auxiliary serial port functions
3
RS-232
TX For auxiliary serial port functions
4
Processor Reset
Reserved for future use. . Do not connect
this pin to any signal
5
V+
Power source for isolated outputs
6
V-
Return for isolated inputs and outputs
7
Ground
Reader (not isolated) return
8
User OUT 1
Isolated output 1 (active pull down to V-)
9
User OUT 2
Isolated output 1 (active pull down to V-)
10
User OUT 3
Isolated output 3 (active pull down to V-)
11
User OUT 4
Isolated output 4 (active pull down to V-)
12
User IN 1
Isolated input 1
14
User IN 3
Isolated input 3
15
User IN
4 Isolated input 4
Table B.2: GPIO Interface Electrical Specification
Pin
Parameter
Description
Min
Max
Unit
Conditions
+5V Supply
IO
Output current
200
mA
User IN 1-4
VIH
HIGH level input
voltage
3
30
V
User IN 1-4
VIL
LOW level input
voltage
0
0.8
V
User IN 1-4
VLI
Input current
5
mA
24V input
User IN 1-4
VI
Input voltage
range
0
30
V
No damage
User Out 1-4
VOH
Output high
voltage
V+*
V
10K pullup
User Out 1-4
VOL
Output low
voltage
(V-)
+0.5
V
100mA load
User Out 1-4
VI
Supply voltage
range (V+ - V-)
30
V
*User-supplied voltage