Motorola MSF 5000 Instruction Manual page 128

MSF
5000
Instruction Manual
Chapter
2
Operation
68P81092E06 3/14/94
Station Operation
Selecting
and
Loading Encryption
Keys
NORE
The
secure options are
only available for
VHF, UHE,
and
800
MHz
models.
The Status display
Key
digit is
illuminated only in stations equipped and
programmed
with
a
secure encode/ decode option.
The secure encode / decode
option requires
the secure
hybrids
to be loaded
with
an encode/ decode
key variable.
A
Key
Variable Loader (KVL) is
a
device that
transfers encode
/
decode
keys
from its memory into other Securenet equipment
containing
secure
hybrids.
A KVL
only loads a
hybrid of the same
type,
as
specified on
the
back of the
KVL
unit.
The station is automatically placed in the access disable mode whenever
a
KVL
is
connected to the station. Use the Select/Set
switch
to choose the desired
hybrid
for
key loading. Verify
the
KVL
is properly programmed before selecting
a key.
To
select the proper
Key
for the station:
1.
Repeatedly
press
(or continuously hold) the Select/Set switch to
Select until
the
Key
digit
is selected.
2.
Repeatedly press (or continuously hold) the Select/Set switch to Set until
the desired
Key
digit
appears
in
the Status display.
3.
If
the
Key
mode has timed-out and additional key loading is
needed,
momentarily press the Select/Set switch to Select.
The
Key
mode is now
re-selected.
For half-duplex operation, up to eight possible
hybrids may
be selected.
Each
hybrid is used for encryption and decryption, but
only
one
operation can be
selected at a time.
NOE
When using Digital Voice Protection
(DVP)
hybrids in
half-duplex operation, they
operate the same as
full-duplex.
For full-duplex
operation,
up
to four
pairs (eight total) of hybrids may
be selected.
Each pair contains an encrypt
hybrid
and
a
complimentary decrypt hybrid. The
encrypt/decrypt pairs
are
usually loaded with
the same
encryption key, but may
differ. Refer to Table 2-2.
To select and load encryption keys for each hybrid:
1.
Plug
the
KVL
cable into the station.
Verify
the
Control Tray
Dis LED
lights.
2-9
MSF
5000
Instruction Manual
Chapter
2
Operation
68P81092E06 3/14/94
Station Operation
Selecting
and
Loading Encryption
Keys
NORE
The
secure options are
only available for
VHF, UHE,
and
800
MHz
models.
The Status display
Key
digit is
illuminated only in stations equipped and
programmed
with
a
secure encode/ decode option.
The secure encode / decode
option requires
the secure
hybrids
to be loaded
with
an encode/ decode
key variable.
A
Key
Variable Loader (KVL) is
a
device that
transfers encode
/
decode
keys
from its memory into other Securenet equipment
containing
secure
hybrids.
A KVL
only loads a
hybrid of the same
type,
as
specified on
the
back of the
KVL
unit.
The station is automatically placed in the access disable mode whenever
a
KVL
is
connected to the station. Use the Select/Set
switch
to choose the desired
hybrid
for
key loading. Verify
the
KVL
is properly programmed before selecting
a key.
To
select the proper
Key
for the station:
1.
Repeatedly
press
(or continuously hold) the Select/Set switch to
Select until
the
Key
digit
is selected.
2.
Repeatedly press (or continuously hold) the Select/Set switch to Set until
the desired
Key
digit
appears
in
the Status display.
3.
If
the
Key
mode has timed-out and additional key loading is
needed,
momentarily press the Select/Set switch to Select.
The
Key
mode is now
re-selected.
For half-duplex operation, up to eight possible
hybrids may
be selected.
Each
hybrid is used for encryption and decryption, but
only
one
operation can be
selected at a time.
NOE
When using Digital Voice Protection
(DVP)
hybrids in
half-duplex operation, they
operate the same as
full-duplex.
For full-duplex
operation,
up
to four
pairs (eight total) of hybrids may
be selected.
Each pair contains an encrypt
hybrid
and
a
complimentary decrypt hybrid. The
encrypt/decrypt pairs
are
usually loaded with
the same
encryption key, but may
differ. Refer to Table 2-2.
To select and load encryption keys for each hybrid:
1.
Plug
the
KVL
cable into the station.
Verify
the
Control Tray
Dis LED
lights.
2-9