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BPX Switch Common Core 3-9
Broadband Controller Card (BCC-32, BCC-3, BCC-4)
backcards). The BCC-3 and the BCC-32 are functionally interchangeable, while the BCC-4 provides
additional features such as support for 19.2 Mbps operation by the BXM cards. Both BCCs in a node
should be of the same type. The backcard provides the following interfaces:
• An 802.3 AIU (Ethernet) interface for connecting the node to a StrataView Plus NMS.
• A serial RS-232 Control Port for connecting to a VT100-compatible terminal or modem.
• A serial RS-232 Auxiliary Port for connecting to an external printer.
• External clock inputs at T1 or E1 rates, output at 8 kHz.
The face plate connectors are described in Table 3-2 and Table 3-3 and shown in Figure 3-5. For
information on cabling, refer to Appendix B, BPX Switch Cabling Summary.
Table 3-2 Backcard (Line Module) for BCC-32, Connectors
BCC-C
Connector
BCC-C
Function
CONTROL A DB25 connector for a VT100 or equivalent terminal for a
basic terminal connection using command line interface
commands. Can also be connected to a dial-in modem for
remote service support or other network management dial-up
access. This is a bidirectional RS232 communications port.
This is not used for SV+ Network Management; the LAN
connector is used for SV+ Network Management.
AUXILIARY A DB25 connector for a system printer. This is a one-way,
RS232 outgoing port.
XFER TMG DB15 connector that supplies an 8-kHz timing signal (RS422
type output that is synchronized to the BPX switch system
clock.) This signal can be used to synchronize a co-located
IPX.
EXT TMG A 75-ohm BNC connection for clock input. An E1 source with
75 ohm impedance typically uses this connector. If the shield
on the cable needs grounding, slide the BCC back card out and
jumped connector JP1 across its two pins.
EXT TMG DB15 connector for a primary and optional redundant external
source of system clock. A T1 source with 100 ohm impedance
or an E1 source with 100/120 ohm impedance typically use this
connector.
LAN A DB15 Ethernet LAN connection for connecting to a
StrataView Plus NMS. A terminal or NMS other than SV+ can
also be connected to the BPX switch LAN port via Ethernet.
However, only the SV+ NMS provides full management
configuration and statistics capabilities via SNMP and TFTP.