Specifications

4
LEDs and External Interfaces
21
Face plate connectors
Table3describesthefaceplateconnectorsontheRTM:
Important:RadisysrequirestheuseofshieldedcablesforbothserialandEthernetport
connectionstominimizethepossibilityofissuesrelatedtoexternalelectromagnetic
interference(EMI).Ethernetcablesshouldbedouble‐shieldedCat5.TocomplywithGR‐1089‐
COREcriteria,ifcablesareconnectedtobothRTMEthernetconnectorsthenallcablesmust
beshielded.
Reset button
TheRTMfaceplateincludesaresetbutton,whichcausestheRTMMMCtoissueacoldreset
totheCPM’sIPMCovertheIPMB‐L.TheIPMCthenresetstheCPMandtheRTMpayload.
Theresetswitchisarecessedbutton.Topushit,useapen,stylus,orothersmallpointed
object.
Table 3. Face plate connectors
Connector Purpose and usage Cable type
USB port Provides USB 2.0 access to the CPM. USB type A cable.
SAS connector
(two)
Extends disk arrays by connecting external hard disks to the
RTM. The RTM’s SAS/SATA controller can include external
disks in a RAID configuration. See
Chapter 3, Configuring a
Redundant Disk Array, on page 14.
SFF 8470 SAS crossover cable.
RS-232 serial port Gives rear management access to the CPM.
Configure the external computer’s terminal emulator to 11200
Kbps, 8 bits, no parity, 1 stop bit, no flow control.
Console shielded serial cable
(RJ-45 to 9-pin D-shell, Radisys
order code ATCA-SERIAL-CBL).
The same cable is included in
shipments of the ATCA-2210
switch and control module.
SFP socket (two) Supplies two full duplex 1 GbE SerDes connections to the
CPM's Ethernet controller.
a
To identify compatible SFP transceivers and install them into
the sockets, see
Installing SFPs on page 10.
a
When used with a CPM, the rear ports are not enabled if the CPM front Ethernet ports are configured
to be used. See the ATCA-4500, ATCA-4550, ATCA-4555 CPM Reference to configure front or rear
port usage.
Straight or crossover double-
shielded Cat 5 Ethernet cable.