Manufacturer: Yokogawa Electric Corporation 
	Yokogawa Node Interface Unit A2NN30D-430000000/ATDOC for N-IO 
	The Node Interface Unit (NIU) has an interface function that allows a Field Control Unit (FCU) to communicate with an I/O unit for N-IO and an interface function that allows NIUs to communicate each other. Furthermore, the NIU supplies power to the I/O unit for N-IO.
24 V DC Output Power Supply Units for Yokogawa Node Interface Unit A2NN30D-430000000/ATDOC
(A2PW503 or A2PW504): 2
N-ESB Bus Modules (A2EN501): 2
Number of I/O Unit for N-IO Connections
Up to 6 units / NIU
A2ZN4DC and A2ZN5DC I/O Units are usable.
(A2BN4D and A2BN5D Base plates are usable.)
Power Consumption for Yokogawa Node Interface Unit A2NN30D-430000000/ATDOC
100 to 240 V AC input: 190 V A
24 V DC input: 150 W
Weight for Yokogawa Node Interface Unit A2NN30D-430000000/ATDOC
Approx. 4.2 kg (configuration maximum value)
 
	Model and Suffix Codes for Yokogawa Node Interface Unit A2NN30D-430000000/ATDOC 
	  
	Description 
	Model  A2NN30D Node Interface Unit (for N-IO) 
	Suffix Codes 
	-4  Dual-redundant Communication,
Dual-redundant power supply 
	3  24
V DC output power supply (100 to 240 V AC input) 
	4  24
V DC output power supply (24 V DC input) 
	0  Always
0 
	0  DIN
rail mount type 
	1  Wall
mount type 
	0  Always
0 
	0  N-ESB
Bus for uplink 
	1  Optical
ESB Bus(0 - 5 km) for uplink 
	2  Optical
ESB Bus(5 - 50 km) for uplink 
	0  N-ESB
Bus for downlink 
	1  Optical
ESB Bus(0 - 5 km) for downlink 
	2  Optical
ESB Bus(5 - 50 km) for downlink 
	0  With
no explosion protection 
	1  With
explosion protection 
	0  Basic
type 
	1  With
ISA Standard G3 option 
	2  With
temperature (-40 to 70 °C) option 
	3  With
ISA Standard G3 option and temperature (-40 to 70 °C) option 
	Option Codes 
	/NCBL With no power supply cable (*1) 
	/ATDOC Explosion
Protection Manual (*2) 
	  
	 