CEM-4
Even though some FSP 3000 C components use FireWire connectors for
interconnecting, neither the FireWire protocol nor pinning is supported.
Electrical connector type RJ-45
Receptacle type 8P8C
Data signal IEEE 802.3 100Mb/1G Ethernet
Cable type
l Unshielded for cable length: < 3 m
l Shielded (S/FTP) for cable length: 3 m to 100 m
Maximum link distance 100 m (328 ft)
Performance
l 10/100 Mb/s/1G Ethernet half/full duplex
l 10/100 Mb/s/1G Ethernet auto-negotiation can be
disabled
l Autosense
l Automatic MDI/MDI-X crossover capabilities
Compliance standards
l IEEE 802.3 10/100BASE-TX
l IEEE 802.3u
Table 8: Specifications — Management Ports
l Overview
l Features
l Ethernet Cables
l IEEE 1394 Interface Cable
1
one free pin
CEM-4
Overview 44
Features 46
Specifications 46
Overview
The CEM-4 incorporates fan control, LED signaling and alarm LED control, integrated
utility feature, and ports for managing passive shelves.
The CEM-4 acts as the controller for the FTM-4, increasing and decreasing the fan speed
according to a set of input parameters from several different sensors. The main sensor is
the temperature sensor in each module. The CEM-4 also has a temperature sensor.
When viewing the front of the SH4R, the CEM-4 is installed on the left side of the shelf.
44 FSP3000 C Hardware Guide - R1.1 - Issue:A (12/09/2016)