Symbol SE 2223, Руководство по интеграции

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2-3
Installation
Electrical Interface
The SE 2223/3223 is controlled by a 12-pin interface that uses the Simple Serial Interface
(SSI) communication protocol. SSI provides a communications link between Symbol
Technologies decoders (e.g., SE 2223 scan engine, slot scanners, hand-held scanners,
two-dimensional scanners, hands-free scanners, and RF base stations) and a serial host.
It provides the means for the host to control the decoder.
Table 2-1. Mounting Hole Specifications
Hole Function Diameter
Engagement Length
(max)
in. mm in. mm
A Locating 0.70 ± 0.001 1.78 ± 0.03 0.08 2.0
B Mounting M2x0.4mm 0.16 4.0
Table 2-2. Electrical Interface
Mnemonic No. Type Name and Function
1 Not connected. Reserved for future versions of the SE 2223/
3223.
VBATT 2 Power Supply : Power supply voltage for the SE 2223/3223.
GND 3 Ground: 0 V reference.
Signal names with the “*” modifier are asserted when at the ground level (active low). Signal names
without the “*” modifier are asserted when at the positive supply voltage level (active high).