Zhone IMACS 8000, User Manual

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System Cards 8-1
Interface Card Introduction
Chapter 8
Interface Card
8.1 Introduction
This chapter provides specific installation, configuration, and troubleshooting information for
the Interface Cards of the Integrated Access System. These cards are labeled as the INTF-R
EXT T1E1*8, INTF-R MODEM T1E1*8, and INTF-R T1E1*8 cards on their faceplate
ejectors. Each card provides communications connections to the system for operator access
and system control. Throughout this chapter, these cards are referred to as the INF-R Ext,
INF-R Modem, and INF-R cards.
The Interface cards for CPU-7 use have been modified to eliminate a possible source for
operational interruptions. The cards have been sectioned into two pieces: the bottom section,
referred to as the motherboard, and the top portion referred to as the daughter board.
All active components have been removed from the motherboard, to allow for a virtually
failure-proof avenue for the incoming T1 or E1 signals to pass from the faceplate to the
backplane. This design allows for a secure, reliable path that should never need be removed
or interrupted from providing external connectivity to the IMACS shelf.
The daughter board has been populated with all of the active components, and should one of
these active components fail, the craftsperson can simply remove and replace the daughter
board without causing an interruption to the system.
8.2 Interface Card Descriptions
8.2.1 INTF-R Ext Card Description (IF+EXT)
The INTF-R Ext card provides the communications, control, and network interface ports. It
has an RJ48 jack for network management; this port is configured as DTE. It also has a RJ48
jack that connects it to the node port for alarm notification, and a local VT-100 terminal port.
An RJ48 external sync port allows clocking from external primary and secondary clock
sources. The INTF-R Ext card supports up to eight T1 or E1 WAN links (see Figure 8-1).