9-19
To change the filing mode for this record, select the F2 key. The filing mode will toggle
between FINAL and REVIEW modes. Refer to section “Selecting the Appropriate Filing
Mode” for a description of the filing mode feature.
To cancel filing for this patient, select the F3 softkey.
RS-232 Communication
Port 1 of the CIS module is a shielded EIA/TIA RS-232 (9-pin mini-DIN) connector that allows
for serial data acquisition by the user’s Clinical Information System once the port is configured
for this mode. Virtually all information displayed on the monitor is available for serial
transmission, including parameter values, alarm status, leads status, remote status, and waveform
information.
Port 2 is not used at this time and is for future applications.
WARNING: Do not attempt accessing RS-232 information unless you
are familiar with UART (Universal Asynchronous Receiver and
Transmitter) operation and setup. Only qualified and experienced
technicians or programmers should attempt using the following data
formats. The user will be required to develop program code to access
and display the acquired data.
UART configuration for serial communication is 19,200 baud, one (1) start bit, eight (8) data bits,
one (1) stop bit, and no parity. The CIS module will transmit two types of packet information: a
parameter packet and a waveform packet. Each packet contains several segments outlined in the
following sections. All Check Sums are modulo 256 over the indicated ranges.
Parameter Packet
Table 1 shows the parameter packet format sent by the CIS module. It is identified by its 2 byte
ID <ESC> <P>. Parameter numbers and names are outlined in Table 3 along with their waveform
numbers.
Table 1. Port 1 - Escort II Parameter Packet
2
bytes
3
bytes
42 bytes 1 byte 1 byte 1 byte 1 byte 1 byte 1 byte
Packet
ID
P
0
P
1
thru P
14
HR
HIGH
LIMIT
HR
LOW
LIMIT
REMOTE
STATUS
REMOTE
RECORD
BACKPORT
WAVEFORM
CHECK
SUM
The above segments are as follows:
The ID field consists of <ESC> <P> and is 2 bytes long. [1Bh] [50h]
The Parameter #0 segment (P
0
) is for ECG. The parameter segment is 3 bytes long. The first
2 bytes contain the 16-bit binary value of the parameter, measured within a range of zero to
five hundred (0 – 500). Data is transmitted LSB, MSB. The third byte contains parameter
status information as described in Table 4.
The Parameter #1 – #14 segment (P
1
thru P
14
) is for all other parameters. Each parameter
segment is 3 bytes long. The first 2 bytes contain the 16-bit binary value of the parameter,
measured within a range of zero to five hundred (0 – 500). Data is transmitted LSB, MSB.
The third byte contains parameter status information as described in Table 4.
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