2 - 28 Chapter 2Chapter 2 - PCB Installation and Startup2.4.3 Memory Expansion Daughter Board (Figure 2-12)The Memory Expansion daughter board (MEMDB) provides additional memory for the system foruse with license control, expanded system networking, remote maintenance, and software updates.It also provides expanded port capacity for the system. This daughter board is mounted on theCCPU and provides:Description MemoryCapacity Equipped MemorySDRAM 128 MB 256 MB / 16 bit x 4 pcsFlash Memory 32 MB 256 MB / 16 bit x 1 pcSRAM 1 MB 4 MB / 16 bit x 2 pcsSystem Maximum PortsUX5000 - No MEMDB installed• No recovery point created for database• No remote update from flash memory, but possiblewhen USB flash drive is installed64(Trunks or Extensions)UX5000 - MEMDB installed and limited port license 256(Trunks: 200 max.Extensions: 256 max.)UX5000 - MEMDB installed and maximum port license) 712(Trunks: 200 max.Extensions: 512 max.)