Enterasys Networks CSX6000 - Manual (Page 64)

USER’S GUIDE
64 CyberSWITCH
V.35 A DAPTER
The V.35 adapter provides two V.35 ports. The card contains two female DB26 connectors. A V.35
adapter cable converts the DB26 connection to a standard V.35 connection. You can configure each
port for DTE (external clocking) or DCE (internal clocking), and each port supports data rates from
56 Kbps to 2,048 Kbps.
The V.35 supports network side connections, providing dedicated connections to other systems.
The adapter can take advantage of network connections such as NTT’s HSD-Y lines, DDS lines in
the U.S., and private network connections through a T1 multiplexer or a channel bank. The V.35
can also take advantage of switched network connections by using an external Data Service Unit
(DSU) or Terminal Adapter. The V.35 supports lead-controlled dialing to the Terminal Adapter.
H ARDWARE C HARACTERISTICS
Number of Ports: 2
Connectors: DB26
Interface: V.35 DTE or DCE (using V.35 adapter cable)
MTBF: 75000hours
MTTR: 0.25hour
V.35 C ONNECTION
The V.35 interface is provided by an adapter cable that converts the DB26 connection on a V.35
adapter to a standard 34-pin V.35 connection.
Each port on a V.35 adapter has software configurable for DTE (external clocking) or DCE (internal
clocking). Be sure to use the appropriate V.35 adapter cable (DTE or DCE).
The DTE V.35 adapter cable provides a standard 34-pin connection with male contacts. The DCE
V.35 adapter cable provides a standard 34-pin connection with female contacts. The following table
shows the pin and signal assignments for the V.35 adapter provided by the adapter cable.