Rockwell Automation 1492- 1771-N Series I/O to 1756 ControlLogix I/O - Manual (Page 2)

(2)
II. Description of the Conversion Solution
Cable Catalog Numbers:
1492-CONACAB020N1
1492-CONACAB020N2
1492-CONACAB020N3
1492-CONACAB020N4
1492-CONACAB020N5
1492-CONACAB020N7
Cable Catalog Numbers:
1492-CONACAB020N5
1492-CONACAB020N6
Cable Catalog Number:
1492-CONACAB020N8
PN-107134
DIR 10000165561 (Version 01)
Publication 1492-IN104B-EN-E
Existing 1771-RTP1,
1771-RTP3 or 1771-RTP4
These solutions require
replacement of the existing
(1) 1771-RTP1 with (2) 1771-RT41
1771-NT1 to 1756-IT6I and 1771-NT2 to 1756-IT6I2
1771-NOC to 1756-OF8 (Non-Isolated)
All solutions except
1771-NT1, 1771-NT2 and 1771-NOC (Non-Isolated)
This conversion from the 1771-N Series I/O to a 1756 ControlLogix I/O is accomplished simply by replacing the (2)
exisitng cables A & B with (2) of the following new 1492 cables. Each of these cables has a connector on one end that
attaches directly to the existing 1771 RTP. On the other end of the new cable is (1) 1756 Removable Terminal Block
(RTB) for connection to the new 1756 ControlLogix I/O Module. The I/O signals are routed from the existing 1771 RTP
through the 1492 cables to the appropriate terminals on the 1756 I/O module, per the Wiring Diagrams in this
Installation Manual. This allows the conversion to be completed without the removal of any field wires from the existing
1771-RTP.