My customer has installed a 3825 ISR with this characteristics:
ROM: System Bootstrap, Version 12.3(11r)T2, RELEASE SOFTWARE (fc1)
System image file is "flash:c3825-adventerprisek9-mz.124-4.T4.bin"
Cisco 3825 (revision 1.0) with 222208K/39936K bytes of memory.
Processor board ID FTX0949A01V
2 Gigabit Ethernet interfaces
4 Serial(sync/async) interfaces
1 ATM interface
1 Channelized E1/PRI port
1 Virtual Private Network (VPN) Module
4 Voice FXS interfaces
DRAM configuration is 64 bits wide with parity enabled.
479K bytes of NVRAM.
62720K bytes of ATA System CompactFlash (Read/Write)
As you can see it has 1 NM-1A-E3 and they want to install new one in the other slot available but we are not sure if that is possible. i mean, a router 3825 ISR can support 2 NM-1A-E3?
We checked datasheet but the info is no really clear.