9-20
HR HIGH LIMIT is 1 byte long and represents heart rate HIGH alarm limit (not currently
supported at this time).
HR LOW LIMIT is 1 byte long and represents heart rate LOW alarm limit (not currently
supported at this time).
REMOTE STATUS is 1 byte long (see Table 5 for Remote Status).
REMOTE RECORD is 1 byte long.
BACKPORT WAVEFORM is 1 byte long. The Backport Waveform byte is divided into
three fields, Port 1, Port 2, and Port 3. The value of each field is defined in Table 6.
Sample Parameter Packet
Packet ID
2 bytes
P0
3 bytes
P1
3 bytes
P2
3 bytes
P3
3 bytes
P4
3 bytes
P5
3 bytes
P6
3 bytes
P7
3 bytes
1b 50 42 00 46 12 00 46 75 00 46 4d 00 46 57 00 46 1b 00 46 08 00 46 11 00 46
P8
3 bytes
P9
3 bytes
P10
3 bytes
P11
3 bytes
P12
3 bytes
P13
3 bytes
P14
3 bytes
7a 00 46 52 00 46 63 00 46 5e 00 46 72 01 46 00 00 56 22 00 46
HR High
Limit
1 byte
HR Low
Limit
1 byte
Remote
Status
1 byte
Remote
Record
1 byte
Backport
Waveform
1 byte
Check
Sum
1 byte
00 00 00 00 40 2d
Waveform Packet
The waveform packet is identified by its 2 byte ID <ESC> <W>, followed by a 1 byte
<Waveform No.>, followed by a length byte. Table 2 shows the waveform packet format sent by
the CIS module.
Table 2. Waveform Packet
2 bytes 1 byte 1 byte <Length> 1 byte
Packet
ID
Waveform
Number
Length
Approximately 160ms of Waveform Data sent at a
sample rate of 120Hz for 110V/60Hz monitors.
—OR—
Approximately 200ms of Waveform Data sent at a
sample rate of 100Hz for 220V/50Hz monitors.
CHECK SUM
The above segments are as follows:
The ID field consists of <ESC> <W> and is 2 bytes long. [1Bh] [57h]
The Waveform Number field consists of <Waveform No.> and is 2 bytes long. Refer to
Table 3 for waveform numbers of each parameter.
The Length field is 1 byte long. The length byte represents the number of bytes that include
waveform data. Waveform resolution is limited to 00h – FEh (254 decimal). FFh (255d) sets
a pacer flag, which may be used for pacer detection when PACER ON is selected.
Transmitted waveform information varies depending on monitor’s configuration. Please note
the voltages and Hz information in Table 2.
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