APX 1000™ Getting Started Guide
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APX 1000 Intended Use
The APX 1000 unit is a WAN access switch, or concentrator that provides WAN access for
individual users or networks. Users or networks connect to the APX 1000 unit over digital
lines supported by different slot cards that can be installed in the APX 1000 unit. Every
APX 1000 unit contains a special slot card, known as the shelf controller, that controls the
operation of the unit. The physical interfaces on the unit provide digital dial-in or ATM
network connections to an Ethernet WAN, and a serial or Ethernet LAN connection for
configuration and administration.
Digital line interfaces
Depending on the slot card that is installed, digital lines can connect the APX 1000 unit to
switches within the local telephone network, supporting dial-in connections from users. Or the
lines can connect the unit to an ATM switch, supporting permanent virtual circuit (PVC) user
connections. You can install the following types of slot cards in an APX 1000 unit to support
various digital lines.
For a complete explanation of configuration and signaling options, see the APX 1000 Physical
Interface Configuration Guide.
24-port E1 slot card
The 24-port E1 slot card provides 24 E1 interfaces. Each E1
interface can be configured to support European primary rate
ISDN, or R1 signaling.
8-port E1 slot cards
The 8-port E1 slot card provides 8 E1 interfaces. Each E1
interface can be configured to support European primary rate
ISDN, or R1 signaling.
24-port T1 slot card
The 24-port T1 slot card provides 24 T1 interfaces. Each T1
interface can be configured to support North American primary
rate ISDN, or robbed-bit signaling modes.
8-port T1 slot card
The 8-port T1 slot card provides 8 T1 interfaces. Each T1
interface can be configured to support North American primary
rate ISDN, or robbed-bit signaling modes.