How many KEM's on a 1140E

[Crash101]

I can't find the answer to how many KEM's can go a 1140E.Right now I have 4 with ext power supply for the lighting.The customers wants add at least one more.Will that work?I don't want to order one if it won't work.
For the record I'm trying to talk them into Console.Net.

 

[az234]

Line/ programmable feature expansion
Eighteen display-based soft keys per module
Maximum of three 18-button modules supported*
With “shift” feature of IP Phone, maximum of one module supported
for presentation up to 36 keys**
Power over Ethernet or local AC power option
Large grayscale graphical pixel-based display
118 x 414 pixel supports eight grayscale levels
Greater definition to support graphical presentation
AC power supply supports backlighting, if desired
Modules cascade to the right of the IP Phone
Supported on IP Phone 1120E, 1140E for BCM50 R2 and BCM 4.0

 

[gwebster]

Shift" key is NOT supported on BCM.

Expansion Module for 11xx is supported on BCM 4.0, BCM 50 3.0 and BCM 450 1.0. Up to 5 Expansion Modules are supported per set on BCM.

 

[Crash101]

Thanks guys for the info.