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Server Cards IMACS System Release 5.1.6 2-1
FRS Card Introduction
Chapter 2
FRS Card
2.1 Introduction
This chapter provides installation, configuration, and troubleshooting information for the
Frame Relay Server (FRS) (881160) card with the 62180 Firmware.
Note that this card is labeled as an ACS card on its faceplate ejector. It is identified as an FRS
card only in the user interface screens shown in this chapter. Throughout the remainder of this
chapter, it will be referred to as the ACS-FRS card.
2.2 ACS-FRS Card Descriptions
2.2.1 ACS-FRS Card Description (881160)
The ACS-FRS card concentrates multiple N x 56K or N x 64K frame relay data streams onto
one or more Nx56/64K links of the Integrated Access System. In addition to frame relay
concentration, the card encapsulates data for Nx56/64K HDLC or SDLC data streams. The
frame relay server software runs on the card, which provides up to 68 logical ports. Up to 128
permanent virtual circuits (PVCs) can be configured on a single card. The aggregate speeds
of all ports associated with each FRS cannot exceed 8 Mbps.
The maximum frame size supported by the ACS-FRS card is 4,096 bytes per frame. Each card
can switch 4,000 frames per second, assuming a frame size of 64 bytes per frame. Up to three
ACS-FRS cards can be used in a system.
2.2.1.1 Card Jumpers/Switch Settings
The ACS-FRS card does not have any jumpers or switches on its motherboard.
2.2.1.2 Installing the Card
Insert the ACS-FRS card into one of the server card chassis slots (P1 to P3). The system can
accommodate up to three server cards.