Technical information

2.3.2 CXB16 Asynchronous Multiplexer (16 lines)
The CXB16 is an intelligent, preprogrammed serial controller that can
operate in either DHV11 or DHU11 mode, depending on the setting of an
on-board switch. The module contains 16 multiplexed lines.
Functional Information
Supported line interfaces EIA RS–422–A/CCITT V.11 X.27
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, and 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 None
Ordering Information
CXB16–AF Module and cable kit. Includes two 7.6-m (25-ft)
BC16D–25 cables, two H3104 cable concentrators,
and other accessories required to install the
option.
• BC16D–25 cable—data only, 36-conductor,
terminated with 36-pin Amphenol male
connectors
• H3104 cable concentrator—concentrates eight
BC16E cables into one BC16D cable; eight
modified modular jacks and one 36-pin Am-
phenol female connector
BC16E-series cable Office cable—data only, six-conductor, terminated
with modified modular plugs
• BC16E–10: 3 m (10 ft)
• BC16E–25: 7.6 m (25 ft)
• BC16E–50: 15.2 m (50 ft)
2–42 VAX 4000 Model 200 Technical Information