Nortel Networks Circuit Card - Manual (Page 851)

Page 851 of 906
Circuit Card Description and Installation
868
QPC513 Enhanced Serial Data
Interface card
Contents
This section contains information on the following topics:
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 851
Physical description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 852
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 854
Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 859
Configuring the ESDI card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 862
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 867
Introduction
The QPC513 Enhanced Serial Data Interface (ESDI) card gives the
CS 1000S, CS 1000M, and Meridian 1 switch two fully synchronous
high-speed serial ports.
These high-speed synchronous ports are used to connect the processor to
synchronous communication peripherals such as Meridian Mail or to a host
computer (for example, DEC or Tandem) using Meridian Link. This card
cannot be used as an asynchronous port or to connect to an administrative and
maintenance terminal. Use either the NT8D41 SDI paddle board or the
QPC841 Quad Serial Data Interface card to connect the switch to an
asynchronous serial peripheral.