Issue
Is there a maximum number of option modules that could be installed on ION9000 meter?

Product Line
ION9000

Environment
Digital/Analog Input/Output Option Modules

Cause
The optional I/O available on ION9000 and limitation.

Resolution

• The maximum number of option modules supported by the device is four. However, there are limitations.
• Depending on the type and quantity of option modules attached to your meter, you may need to reduce your meter’s maximum operating temperature or limit the number of option modules.

**Warning: EQUIPMENT DAMAGE CAN OCCUR. Do not exceed the maximum number of option modules. Failure to follow these instructions can result in equipment damage.**

The maximum operating temperature for option modules is as follows:

Maximum operating temperature	PM89M2600 Digital (2 out, 6 in)	PM89M0024 Analog (2 out, 4 in)
70 ºC (158 ºF)	0 - 4	0,1
70 ºC (158 ºF)	0	2
60 ºC (140 ºF)	1,2	2-4

Released for: Schneider Electric Ireland