
Problem
Possible Cause
Action
Cannot connect with the
RS-232C
connector.
The
Call Proc Serial I/O
connector is used.
Connect to the
RS-232C
connector.
Cannot connect with
Ethernet0
and
Ethernet1
connectors.
The
Call Proc Ethernet I/O
connector or the
ISDN
connector is used.
Connect to the
Ethernet0
and
Ethernet1
con-
nectors.
The
ISDN1
connector is
used.
The
ISDN1
connector is currently unavail-
able.
The
Call Proc Ethernet I/O
,
Ethernet0
, or
Ethernet1
connector is used.
Connect to the
ISDN0
connector.
ISDN device cannot be
connected.
The MU847090A/B ISDN
Interface Unit (option) is
not installed.
The MU847090A/B ISDN interface unit is
sold separately. Specify this when you or-
der your device.
Inappropriate handset
volume.
The handset for the
MD8480A/B or MT8820A
is used.
Use the standard accessory handset sup-
plied with the MD8470A.
The temperature inside
the MD8470A rose ab-
normally.
System error is displayed.
The power fan of the
MD8470A halted.
Refer to Section 3.4 “When System Error Is
Displayed.”
Although the external
reference input is set for
the reference oscillator,
the external reference
signal is not input to the
10MHz Ref Input
connec-
tor.
Input the external reference signal to the
10MHz Ref Input
connector.
The icon on the taskbar
turns read and “Refer-
ence not locked” is dis-
played when moving the
pointer onto the icon.
Although the external
reference input is set for
the reference oscillator,
the signal input to
10MHz
Ref Input
connector is out-
side specifications.
Input the external reference signal pre-
scribed in Section 1.4 “Specifications.”
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Summary of Contents for MD8470A
Page 15: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 31: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 63: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 85: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 99: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 101: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...
Page 113: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...