Verilink 2000 (34-00182) Product Manual - Manual (Page 35)

4
T
ERMINAL
O
PERATION
Introduction This chapter describes the screens and menus associated with the TxPORT 2000
CSU Terminal Interface, which is a firmware application program embedded inside
the unit. The interface allows control and monitoring of the unit through a serial
terminal, using one or both of the two 6-pin modular serial ports located on the
front and rear panels.
Refer to the Installation chapter for more information on user connections. Cables
are available for most typical connections. Standard cables and ordering numbers
are listed in Table 1-2 on page 1 -7. Contact TxPORT for any needed assistance in
cable selection.
In addition to the 54016 and T1.403 protocols, proprietary messages can be sent
over the facility data link (FDL) from the near-end CSU to the far-end CSU. A
local RS-232 terminal connected to the CSU may access a far-end CSU. Thus, the
remote CSU may be queried for status and statistics, configured, or looped for
testing as if the terminal is directly connected to it.
System
Description The terminal interface requires an ANSI-compatible VT100 terminal (ASCII), or a
computer running an ANSI terminal emulation program. The Terminal Interface
utilizes the ASCII break and escape functions, which are implemented differently
with the various terminal emulation programs. Consult the documentation supplied
with the terminal emulation program for further reference.
The unit has two serial interface RS-232 ports. Either of these ports may be used
for the terminal interface program or as a connection to the EM8000 Network
Manager or 8100A Site Controller. One port is a pair of daisychain-type rear panel
connectors labeled NMS IN/OUT and NMS OUT. The other port is located on the
front panel and is labeled SUPV.
The stand -alone unit also has a second supervisory connector on the rear panel
wired in parallel with the front panel supervisory port. Serial bit rates of 1200,
2400, 9600, or 19200 kbps may be selected using option switches (see
Supervisory Port Bit Rate on page 2 -7).
Both serial ports support the same custom protocols that allow the terminal
interface, the EM8000, or the 8100A to request and receive performance and
configuration data from the CSU. The unit automatically determines which
protocol is needed.