Specifications – Rockwell Automation 1738-AENTR Armorpoint 2 Port Enet Adapter User Manual
Page 16
 
16 ArmorPoint I/O 2-Port EtherNet/IP Adapter, Series A
Publication
1738-IN028B-EN-E - February 2010
Specifications
General
Attribute
Value
Number of modules supported, 
maximum
63
Number of rack optimized 
connections
5 (for digital modules only)
Number of direct connections, 
maximum
20
Backplane output current, 
maximum
0.8 A
The actual number of modules can vary. Add up the 
requirements of the modules you want to use, for 
current, to make sure they do not exceed the 
amperage limit of 0.8 A for the 1738-AENTR.
Backplane current can be extended beyond 0.8 A by 
using a 1738-EP24DC Backplane Extension Power 
Supply. Add multiple 1738-EP24DC modules to 
achieve the maximum limit of 63 modules.
Input voltage rating
24V DC nominal
10…28.8V DC range
Field side power requirements
24V DC (+20% = 28.8 V DC maximum) @ 400 mA 
maximum
Inrush current, maximum
6 A for 10 ms
Interruption
Output voltage will stay within specifications when 
input drops out for 10 ms at 10V with maximum load.
Input overvoltage protection
Reverse polarity protected
PointBus output current, maximum
0.8 A @ 5V DC ± 5% (4.75…5.25V DC)
Auxiliary power cable
(1)
Standard cordset (single-ended): Allen-Bradley part 
number 889N-F4AFC-yF
Standard patchcord (double-ended): Allen-Bradley 
part number 889N-F4AFNM-x