F
F
r
r
e
e
e
e
w
w
a
a
y
y
R
R
a
a
n
n
g
g
e
e
S
S
y
y
s
s
t
t
e
e
m
m
U
U
s
s
e
e
r
r
G
G
u
u
i
i
d
d
e
e
P
P
r
r
o
o
-
-
B
B
e
e
l
l
L
L
t
t
d
d
4
4
0
0
H
H
U
U
-
-
F
F
r
r
e
e
e
e
w
w
a
a
y
y
R
R
a
a
n
n
g
g
e
e
S
S
y
y
s
s
t
t
e
e
m
m
U
U
s
s
e
e
r
r
G
G
u
u
i
i
d
d
e
e
F
F
r
r
e
e
e
e
w
w
a
a
y
y
o
o
p
p
e
e
r
r
a
a
t
t
i
i
n
n
g
g
a
a
s
s
a
a
b
b
a
a
s
s
i
i
c
c
s
s
y
y
s
s
t
t
e
e
m
m
c
c
o
o
n
n
t
t
r
r
o
o
l
l
l
l
e
e
r
r
S
S
p
p
e
e
c
c
i
i
a
a
l
l
t
t
e
e
s
s
t
t
m
m
o
o
d
d
e
e
WARNING:
It is only appropriate that this mode is selected by
suitably qualified service and maintenance staff.
Special test mode provides a number of tests for various components of the 2440
hardware, e.g. RAM/EPROM, serial ports, LEDS and router control bus. The tests are
initiated via the editor port (see ‘Terminal command set’ for command syntax). This
section describes each of the tests requiring invocation via the Editors as well as
those running cyclically.
Control
card
Slave router
Slave router
Config
PC
Master
router
RS232
Up to 7 independently controllable
slave routers (8 levels max)
Panel protocol
Port 1
Panel protocol
Port 2
‘Video
reference
in’
‘Control
interface’
Panel
UMD
RS485
RS485
Panel
Panel
etc.
etc.
