Description
SET UP AND CONFIGURATION
The 6420 is a two channel digital termination unit that operates at all common speeds between
2,400bps and 64Kbps and supports asynchronous and synchronous operation. The unit is equipped
with three push-button switches, accessed from the front of the unit, to provide configuration, installa
tion, and diagnostic assistance. An LCD display provides visual interface into the menu system as well
as the operation of the unit. Among the operational displays are LED status simulations as well as both
port and line utilization statistics.
INTERFACE AND OPERATION
Both V.35 and RS-232 line signaling and connectors are provided on the rear of the unit for port 1. Port
2 is supported with a DB-25 RS-232 interface only. Limited Distance Modem operation is available on
the 6420 with one unit configured with a master clock setting. At 56Kbps, depending upon wire gauge,
the 6420 can operate error-free at up to ten miles distance.
SETTINGS AND DIAGNOSTICS
Three pushbutton switches allow for easy management of the through port and line settings, selection
of an operational display, and performing diagnostics. Diagnostics include Self-Test, Digital Loop, Local
Loop, and Remote Loop. The unit can quickly isolate network faults and minimize network downtime.
Even if the ports are accidentally misconfigured, a factory reset is as simple as pressing all three but
tons while powering up.
ELECTRICAL
Electrical requirements are supplied by an external power transformer that accepts 117VAC and sup
plies 10VAC to the 6420. The electrical connection is therefore free from any dangerous voltages on
the PC board itself. UL and CSA approvals exist for the power transformer separately from the unit. -48 and -130VDC versions are also available.
INDUSTRIAL STRENGTH
The 6420 is packaged in an aluminum enclosure with steel front and rear panels, providing a durable
enclosure for industrial environments. Front panel controls use dome switches protected by a polycar
bonate cover. We also offer high temperature and humidity enhancements.
SUPPORT
No long voice mail menus and no “DJ” telling you how long your wait will be. Real, living people answer
our phones to assist you. Our five year warranty and first year free overnight replacement policy contin
ues to demonstrate our commitment to you.