I P - D S U U s e r ’ s M a n u a l
02/02/08
8
2 P H Y S I C A L D E S C R I P T I O N
Stand-Alone
IP-DSU
Rack-Mount
IP-DSU
panel
The compact
IP-DSU
is available as a stand-alone unit and can also be configured to
mount into an available rack-mount panel, to fit various space and configuration
requirements. It can be configured as either a 115V/220V AC or 48V DC powered unit. It
must be placed at a location with cable access to both the BNS trunk I/O board and the
local IP network.
2.1 Device
Interface
Through a DB25 RS530 connector, the IP-DSU supports two software-selectable device
interfaces: V.35 and RS232-C. The female connector electrically presents a data
communication equipment (DCE) interface.
For V.35, a 34-pin electrical interface used for connecting the BNS trunk I/O board to the
IP-DSU, a standard RS530 to V.35 adapter is available.
The IP-DSU DB25 RS530 connector directly supports RS232-C, which, in this case, is a
25-pin electrical interface for connecting the BNS trunk I/O board to the IP-DSU.
2.2 10BaseT LAN Interface
This interface requires a standard RJ45-terminated Category 5 twisted-pair data cable. It
connects to a 10BaseT hub or router on the local LAN segment.