3-20
Operations Manual: HPAC-100/125/150/200/250-RM SSPA
3 Operation of Stand-Alone Unit
The following paragraphs give detailed descriptions of each command.
The item labeled length indicates the total number of bytes in the packet which includes
the two frame sync bytes.
Set Configuration Mode
Determines which control and status messages are recognized by the unit.
Type:
COMMAND
Pkt Length:
7
Destination:
SSPA System Address
Source:
M&C Address
Command:
0x21
Data:
Unit ID:
(1 byte, integer)
[ 1 | 2 | 3 ]
Mode:
(1 byte, integer)
0 = OPS
Operations mode.
1 = SETUP
Setup Mode.
Length:
9 bytes
Set RF Muting
Sets the mute state of the unit.
Type:
COMMAND
Pkt Length:
7
Destination:
SSPA System Address
Source:
M&C Address
Command:
0x22
Data:
Unit ID:
(1 byte, integer)
[ 1 | 2 | 3 ]
Mute State:
(1 byte, integer)
0 = OFF
RF muting is turned off.
1 = ON
RF muting is turned on.
Length:
9 bytes
Set Attenuation
Sets the amount of RF signal attenuation for a unit. The Parallel Port Enable DIP
switch (S7, pin-4) must be set to “OFF”.
Type:
COMMAND
Pkt Length:
7
Destination:
SSPA System Address
Source:
M&C Address
Command:
0x23
Data:
Unit ID:
(1 byte, integer)
[ 1 | 2 | 3 ]
Attenuation Level:
(1 byte, integer)
[ 0..20 ]
Attenuation level in dB.
Length:
9 bytes
Summary of Contents for HPAC-100-RM
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