Technical information

2.3.3 CXY08 Asynchronous Multiplexer (8 Lines)
The CXY08 asynchronous multiplexer performs data concentration, real-
time processing, and interactive terminal handling. The CXY08 can operate
in either DHV11 or DHU11 mode, depending on the setting of an on-board
switch. The CXY08 supports full modem control.
Functional Information
Supported line interfaces EIA RS–423–A/CCITT V.10
EIA RS–232–D/CCITT V.28
DEC–423
Split-speed operation All lines
Flow control (XON/XOFF) All lines
Supported data formats 16 programmable formats (each with 1 start bit)
• 5, 6, 7, or 8 data bits, 0 or 1 parity bit, and 1
stop bit
• 5 data bits, 0 or 1 parity bit, 1.5 stop bits
• 6, 7, or 8 data bits, 0 or 1 parity bit, and 2
stop bits
Parity, if enabled, can be either odd or even.
Modem control Full
Supported modems Bell models 103, 113, 212
Ordering Information
CXY08–AF CXY08 field-installed kit. Includes two 3.7-
m (12-ft) BC19N–12 cable assemblies and other
accessories required to install the option.
• BC19N–12 cable assembly—concentrates four
11-conductor cables with 25-pin male
D-connectors into one 44-connector cable ter-
minated by a 50-pin male CHAMP connector.
Performance
Transmit data transfers Single-character programmed transfers or up to
16-character block mode DMA transfers in DHV11
mode.
Option Specifications 2–45