Front panel connector pin assignments 165

Memory

CP PIV memory uses DDR SDRAM technology. The CP PIV provides
a maximum of two GBytes using two verticall DIMM socketsto install
off-the-shelf DIMM modules. CP PIV only supports DDR SDRAM DIMM
memory with a supply voltage of +2.5V.
are supportedThe memory data path is 72-bit wide. The Intel 855GME Host
Bridge supports 64 Mbit, 128 MByte, 256 MByte and 512 Mbyte SDRAM
technologies with a maximum ROW page size of16 Kbytes and CAS
latency of 2 or 2.5. The maximum height of the DIMM modules possible
on CP PIV is one inch or 25.4 mm.
The DDR interface runs at 100 MHz synchronously to the front side bus
frequency. The SPD (Serial Presents Detect) -SROM available on DIMM
modules provide all necessary information (speed, size, and type) to the
boot-up software. The SPD-SROM can be read via SMBUS connected to
the Intel Hance Rapids South Bridge.
Front panel connector pin assignments

COM1 and COM2 ports

The physical interface forthe COM1 and COM2 ports to the front panel is
through a stacked dual Male DB9 Connector. The corresponding pin details
are shown in Table72 "COM1 and COM2 pin assignments" (page 165).
Table 7 2
COM1 and COM2 pin assignments
Pin number Pin name
1DCD
2RXD
3TXD
4DTR
5GND
6DSR
7RTS
8CTS
9RI

USB port

The physical interface for thetwoUSB ports to the front panel is through a
standard USB connector. The corresponding Pin details are shown in Tab le
73 "USB connector pin outs" (page 166).Table27. USB Connector Pin Outs
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23May 2008
Copyright© 2003-2008, Nor tel Networks
.