Specifications

5-3
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Chapter 5 BXM Card Sets: T3/E3, 155, and 622
Overview: BXM Cards
• Constant Bit Rate (CBR)
• Real time and no-real time Variable Bit Rate (rt-VBR and nrt-VBR)
• Available Bit Rate (ABR) with VSVD
• Available Bit Rate (ABR) without VSVD
• ABR with VSVD supports explicit rate marking and congestion indication (CI) control.
• ABR using Foresight
• Unspecified Bit Rate (UBR).
All software and administration firmware for the BXM card is downloadable from the BCC and is
operated by the BXM on-board sub-system processor.
A BXM card set consists of a front and back card:
• TheBXMT3/E3isavailablewithauniversalBPX-T3/E3backcardin8or12portversions.
• The BXM-OC-3 is available with 4 or 8 port multi-mode fiber (MMF), single mode fiber (SMF),
or single mode fiber long reach (SMFLR) back cards.
• The BXM-OC-12 is available with 1 or 2 port SMF or SMFLR back cards.
Any of the 12 general purpose slots can be used for the BXM cards. The same backcards are used
whether the BXM ports are configured as trunks or lines. Table 5-1 and Table 5-2 list the available front
and back card options for the BXM-T3/E3, BXM-155, and BXM-622.
Table 5-1 BXM T3/E3, BXM-155, and BXM 622 Front Card Options
Front Card
Model Number
No. of
Ports
Cell Buffer
(ingress/egress)
Connections per
card Back Cards
T3/E3 (45 Mbps/34Mbps)
BXM-T3-8 8 100K/130K 16K BPX-T3/E3-BC
BXM-E3-8 8 100K/130K 16K BPX-T3/E3-BC
BXM-T3-12 12 100K/230K 16K BPX-T3/E3-BC
BXM-E3-12 12 100K/230K 16K BPX-T3/E3-BC
OC-3/STM-1 (155.52 Mbps)
BXM-155-8 8 230K/230K 16K MMF-155-8
SMF-155-8
SMFLR-155-8
BXM-155-4 4 100K/230K 16K MMF-155-4
SMF-155-4
SMFLR-155-4
OC-12/STM-4 (622.08 Mbps)
BXM-622-2 2 230K/230K 16K SMF-622-2
SMFLR-622-2
SMFXLR-622-2
BXM-622 1 130K/230K 16K SMF-622
SMFLR-622
SMFXLR-622