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M12 component weights
The weight of a fully loaded M12, as well as the weights of individual components,
are listed in Table 13.
16–port card specifications
The ports in the M12 support full duplex link speeds at 2.125 Gbps or 1.0625 Gbps,
inbound and outbound, automatically negotiating to the highest common speed of
all the devices that are connected to the port. Each port has a serializer/deserializer
(SERDES) which accepts 10–bit wide parallel data and serializes it into a
high-speed serial stream. The parallel data is expected to be 8B/10B encoded data
or equivalent.
The ports are compatible with optical SWL (780–850 nm), and optical LWL
(1270–1350 nm), SFPs, and SFP-compatible cables. The strength of the signal is
determined by the type of SFP that is being used.
The ports are universal and self-configuring, and are capable of becoming F_ports,
FL_ports, or E_ports.
The ports meet all required safety standards. For more information about these
standards, see Table 21 on page 92.
CP card specifications
This section describes the specifications for the CP card.
Memory specifications
The centralized memory maximizes switch throughput by guaranteeing full transmit
and receive bandwidth to all fibre channel ports at all times.
Each CP card contains the type and specification of memory listed in Table 14.
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IBM TotalStorage SAN Switch: 2109 Model M12 Installation and Service Guide
Table 13. Component weights
Component
Fully loaded chassis
Empty chassis
Door
Blower assembly
Power supply
WWN bezel
CP card
16-port card
Card filler panel
Cable management tray
Table 14. Memory specifications
Memory type
Main memory
Weight
Approximately 114 kg (250.0 lb)
47.1 kg (104.0 lb)
3.4 kg (7.6 lb)
4 kg (8.8 lb)
3.2 kg (7.0 lb)
0.27 kg (0.6 lb)
2.5 kg (5.6 lb)
3.9 kg (8.6 lb)
1.6 kg (3.2 lb)
0.27 kg (0.6 lb)
Amount
256 MB of SDRAM (32 bits wide)
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