Lenovo Secure Managed Client - Manual (Page 64)

Enclosure subsystem
The SMC - Storage Array design concept is based on an enclosure subsystem
together with a set of plug-in modules and (as supplied) consists of:
v An enclosure chassis with:
– A backplane PCB
– An enclosure management PCB
– A SAS expander PCB, to branch from 4 to 12 SAS ports, supporting SATA
tunnelling protocol
– A front operator's panel
– An integral rear panel, incorporating an enclosure ID LED
– A power supply mounting cage containing one 850-W plug-in power supply
unit (PSU)
Note: A blanking plate must be installed over the empty upper bay.
v A server subsystem comprising:
– An Intel Server Board S5000PSL with integral I/O panel
– An Intel RAID Controller SRCSATAWB
– A boot drive module
v A cooling module containing 10 high-speed, single-rotor axial fans, which are
individually pluggable
v 12 SATA hard drives
1 Empty power supply bay 11 USB port 1
2 PS2 mouse port 12 USB port 3
3 System status LED 13 USB port 2
4 MSB (POST LED) 14 Video port
5 Bit 1 (POST LED) 15 LSB (POST LED)
6 Serial port 16 Bit 2 (POST LED)
7 NIC port 1 (1 Gb) 17 PS2 keyboard
8 NIC port 2 (1 Gb) 18 ID LED
9 2 dual-port Ethernet cards 19 Power supply unit 1
10 USB port 0
Figure 4. Enclosure subsystem rear view
58 Hardware Maintenance Manual