Rockwell Automation 2755 Enhanced Decoder Series B - Manual (Page 30)

2–13 Decoder Features
Publication 2755-833
Package Detectors for Scanners
Scanner Description Catalog No.
L7 / L9 Optional, for Catalog No. 2755-L7, -L9 Scan Head. DC retroflective detector with an operating range up to 18 feet
(5.49 meters). Mounts from front or rear, plus head rotation allows additional flexibility in selecting sending direc-
tion. 2755-NP3
Optional, for Catalog No. 2755-L7, -L9 Scan Head. Polarized beam retroflective detector has a maximum operating
distance of 10 feet (3.03 meters) or 8 feet (2.43 meters) with a 2 to 1 operating margin. Includes mounting brackets
for single-hole or flat surface mounting. 2755-NP5
L4 / L5 Optional, for Catalog No. 2755-L4, -L5 Scan Head. DC retroflective detector with an operating range up to 18 feet
(5.49 meters). Mounts from front or rear, plus head rotation allows additional flexibility in selecting sending direc-
tion. 2755-NP1
Optional, for Catalog No. 2755-L4, -L5 Scan Head. Polarized beam retroflective detector has a maximum operating
distance of 10 feet (3.03 meters) or 8 feet (2.43 meters) with a 2 to 1 operating margin. Includes mounting brackets
for single-hole or flat surface mounting. 2755-NP4
We recommend using Allen-Bradley Photoswitch
R
package
detectors (PhotoSeries 6000 or 9000) with 2755-LD4 and -LD8
scanners. You must order a current sinking type sensor with the QD
(Quick Disconnect) suffix that is capable of operating with a +12V
DC source (pin 1) and drawing not more than 100 mA and a sink
capability of 5 mA at +12V DC.
For example: Catalog Number 42SRU-6203-QD or
Catalog Number 42GRU-9200-QD
Communication Cable and Connector Kit
A cable and connector kit is available for the AUX and HOST ports
of the NEMA Type 4 decoder. We recommend using Catalog
Number 2755-NC17 to make your own cable for RS-422 or RS-485.
Pinouts can be found in Appendices D and E. Use Catalog Number
2755-CT1 only for RS-232. Order as separate components using the
following catalog numbers.
Catalog
Number
NEMA
Type Product Description
2755–NC17 4 Connector Kit 19-pin NEMA 4 Host or AUX port connectors. Used to make custom NEMA 4 communication
cables.
2755–CT1 4 Interface Cable 10 foot cable with NEMA Type 4 connector on one end for connecting to HOST or AUX port of
NEMA Type 4 Decoder and 25-pin DB connector on other end for connecting to a host device or
programming terminal (for RS-232 only).
2755–CY1 4 Host Port
Interface Cable
Multidrop interface cable for DH485 applications using NEMA Type 4 decoders.