Rockwell Automation 2755 Enhanced Decoder Series B - Manual (Page 18)

Chapter
2
Publication 2755-833
Decoder Features
This chapter describes features of the Dual-Head Bar Code
Decoders, including available options and accessories. It covers:
•
NEMA type enclosures
•
scanner ports
•
power supply
•
LED indicators
•
serial communication ports (HOST port and AUX port)
•
LCD display
•
discrete input/output modules
The 2755-DS1_ and -DD1_ decoders have NEMA Type 1
enclosures. The 2755-DS4_ and 2755-DD4_ decoders have NEMA
Type 4 enclosures. All connections and ports on the NEMA Type 4
enclosure comply with NEMA 4 standards.
Although the installation varies for the NEMA Type 1 and Type 4
decoders, they have the same features and operate identically.
Single-head decoders have one port for connecting a scanner. That
port is designated Scanner Port A. Dual-head decoders have two
ports for connecting scanners. They are designated Scanner Port A
and B.
Both ports support scanners from the 2755-L4/L5 , -L7/L9 , –LD4 and
–LD8
①
families with the appropriate cables. The scanners do not
require a separate power supply. They receive power from the
decoder through the cable. The NEMA Type 1 decoder also supports
the 2755-G3 and –G6 Hand-Held Scanners and 2755–LD1 and
–LD2 Scanners.
②
①
Catalog Numbers are incomplete. The 2755-L4/L5, –L7/L9, –LD4 and LD8 scanners are available
in different configurations.
②
The 2755-G3 and –G6 Hand-Held Scanners and 2755–LD1 and –LD2 Scanners require the
2755-NC16 Gun Adapter.
Chapter Objectives
NEMA Type Enclosures
Scanner Ports