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2-34 Vanguard 7300 Enclosures and Components
Vanguard 7300 Cards
Serial Card and Rear Transition Module
Introduction The Serial Card and its Serial Rear Transition Module support multi-protocol high-
speed serial data communications. The Serial Card and transition module support up
to eight channels of serial data. They are typically used for LAN/WAN networking
and telecommunications applications. Like the T1/E1/PRI card, the two-part Serial
Card shown in Figure 2-23 occupies a single Vanguard 7300 chassis slot.
Figure 2-23. Serial Card and Transition Module Layout
Serial Card
Serial Protocols
Supported
The Serial Card supports synchronous applications such as HDLC, FR, X.25, SDLC,
LAPB, LAPD, ISDN, and PPP serial communication protocols.
Serial Card - Front
Panel and LEDs
The Serial Card front panel does not contain connectors. See Figure 2-24. This table
describes the two front panel LEDs that provide diagnostic information:
Figure 2-24. Serial Card - Front View
Front Panel
Rear Panel
Serial No.
Location
Serial Card
Serial Rear Transition Module
Serial No.
Location
Midplane
LED Color Indication
EXT - Hot Swap LED Blue Not Implemented
PWR - Power LED Green ON when +5V is supplied