Black Box 5000 - Manual (Page 164)

Multiserver 5000
162
The following menu will appear:
After the test is initiated, the Command Facility
terminal will be returned to the Command Facility
main menu. On the attached synchronous device,
all characters entered will be echoed back to itself.
Integrity of the port and the terminal may be
judged by observing the quality of the returned
data.
The sync port must be forced-connected to another
sync port for the test to operate. Also, the attached
device must be able to accept its own data.
This test must be terminated. As long as the test is
in an INITIATE LOOPBACK state, the sync
channel will not be operational. The Command
Facility terminal terminates the test by reentering
the Sync Channel Loopback menu and choosing
option 2, Terminate Loopback.
V OICE /F AX T ESTS
See the Voice/Fax User’s Manual for information
on these tests.
I NTEGRAL D EVICE T ESTS
See the 56K CSU/DSU User’s Manual for
information on these tests.
LED T EST
This test causes all of the LED indicator lights to
light simultaneously for a couple of seconds and
then they will extinguish. It is simply a test of the
indicator lights to be sure they are working. The
test terminate automatically after 20 seconds.
M EMORY D UMP
This is reserved for dealer use only.
SYNC CHANNEL LOOPBACK [TERMINATE LOOPBACK]
1. INITIATE LOOPBACK
2. TERMINATE LOOPBACK
CR - ACCEPT ENTRY
M - MAIN MENU
ENTRY: