Programmable Buffered Interface / Model P53; O Bnc Supported Signals - Canoga Perkins 2240 User Manual

Canoga Perkins
Signal
TxD
RxD
SCR
SCT
SCTE

4.9 Programmable Buffered Interface / Model P53

The Model P53 Interface Module complies with EIA Standard RS-530 while all
clock, data and control signals follow the RS-422 standard. The basic configura-
tion of the P53 interface is a DCE device (w/Fem DB-25) and two connector
adapters are provided with the interface: the DCE / DTE adapter which converts
the interface to the DTE form (w/Male DB-25) and the "Legacy" adapter which
converts the interface to the original Model P2 interface.
This interface implements a set of circuits (resources) which can be interconnected
in various ways to satisfy a host of differing applications. These resources are:
•
a 16-bit FIFO (first-in, first-out) buffer
•
an inverter
•
a switchable delay line
The FIFO can be utilized to buffer either the received or the transmitted data (not
both). The Delay Line, in conjunction with a four-position DIP switch, provides an
option for fine tuning the relationship between clock and data timing. Table 4-P
defines the delay lines versus switch settings for the Model P53 Interface.
76
Full Name
Transmit Data
Receive Data
Serial Clock Receive
Serial Clock Transmit
External Clock Transmit
Direction
To Modem
From Modem
From Modem
From Modem
To Modem
Table 4-O.
BNC Supported
Signals