HP AD278A and AD279A PCI Multiplexer Support Guide, November 2008

Table 1-5 HP PCI MUX Adapter Types
Number of
Ports
Bus VoltageCard Type
and Speed
Maximum Port
Speed
InterfaceDescriptionProduct
Number
83.3 V and 5.0 VPCI 33MHz115.2 kbpsFan-Out CableHP AD278A PCI
MUX 8-port serial
adapter
AD278A
16 to 643.3 V and 5.0 VPCI 33MHz38.640 kbpsPort ModulesHP AD279A PCI
MUX 64-port serial
adapter
AD279A
Every AD278A/AD279A PCI MUX adapter card has processors that control the flow of data
through multiple communication ports.
AD278A PCI MUX 8-Port Adapter
The AD278A PCI MUX 8-port adapter can control the operations of up to eight high speed serial
ports. It works on both 3.3 V and 5 V systems. For more information, see “Card Specifications”
(page 29). The AD278A PCI MUX 8-port adapter supports a fan out cable as an interface.
Figure 1-1 shows AD278A PCI MUX 8-port adapter.
Figure 1-1 AD278A PCI MUX 8-Port Adapter
AD279A PCI MUX 64-Port Adapter
The AD279A PCI MUX 64-port adapter can control the operations of up to 64 high speed serial
ports. It works on both 3.3 V and 5 V systems. For more information, see “Card Specifications”
(page 29). The AD279A PCI MUX 64-port adapter supports 16 to 64 ports by using up to four
external port modules, to be ordered separately.
Figure 1-2 shows AD279A PCI MUX 64-port adapter.
Figure 1-2 AD279A PCI MUX 64-Port Adapter
10 Introduction