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Port Interface Modules 4-3
PIMs and BRIMs
The suffix of the PIM’s product name, which follows the hyphen, specifies what
media type and connector style the PIM provides. Typically any alphabetic
characters indicate the media, while numerical characters indicate a special
connector type for that media. The “F” in the example shown in Figure 4-2
indicated that the PIM is for fiber optic media, while the “2” further indicates that
the PIM provides Straight-Tip, or ST-type connectors.
EPIMs
EPIMs are Ethernet Port Interface Modules. An EPIM provides one shared or
switched Ethernet connection to a single type of Ethernet media. EPIMs are
typically used to make connections from workgroups to enterprise switches, data
centers, or specialized equipment. The EPIMs that are available from Cabletron
Systems and the types of cabling and connectors supported by each are listed
below:
EPIM-A: AUI (DB15 Female Connector)
EPIM-C: Coaxial Cable (RG-58 Connector)
EPIM-F1: Multimode Fiber Optics (SMA Connectors)
EPIM-F2: Multimode Fiber Optics (ST Connectors)
EPIM-F3: Single Mode Fiber Optics (ST Connectors)
EPIM-T: Shielded or Unshielded Twisted Pair (RJ45 Connector)
EPIM-X: AUI (DB15 Male Connector)
Fast Ethernet Interface Modules
Fast Ethernet Interface Modules are, in essence, EPIMs for the Fast Ethernet
networking technology.
EPIM-100TX: Fast Ethernet UTP (RJ45 Connector)
EPIM-100FX: Fast Ethernet Multimode Fiber Optics (SC Connector)
EPIM-100F3: Fast Ethernet Single Mode Fiber Optics (SC Connector)
EPIM-100FMB: Fast Ethernet Multimode Fiber Optic Buffered Uplink
(SC Connectors)
NOTE
Fast Ethernet Interface Modules will not operate in standard
Ethernet devices. The reverse situation is also true.