SAFEPATH Manual
Sheet 13 of 78
Rev. C April 1999
DX-200 Message Memory
The DX-200 has the ability to store up to sixteen minutes of audio. The audio is stored digitally on up to eight memory I.C.'s. Each
memory I.C. can store up to two minutes of audio messages. See Figure 6 for the socket locations S63 thru S70 on the DX-200
printed circuit board into which the eight memory I.C.'s, U63 thru U70, are inserted.
These memory I.C.'s are commonly referred to as pseudo static random access memories ("PSRAM's", see PSRAM definition in
glossary). If the input power is disconnected and the memory retention battery is or has been disconnected or discharged, the
PSRAM I.C.'s will be erased.
WARNING: IF BOTH THE INPUT POWER AND THE BATTERY BACK-UP POWER ARE DISCONNECTED AND THE
MEMORY RETENTION BATTERY IS OR HAS BEEN DISCONNECTED OR DISCHARGED, ALL MESSAGES
IN THE PSRAM I.C.'S WILL BE ERASED. IF STORED MESSAGES ARE ERASED, THEY WILL NOT BE
DELIVERED WHEN INPUT POWER IS RESTORED. THIS COULD RESULT IN PROPERTY DAMAGE AND
SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.
Input and Output Options
Each SAFEPATH panel model includes 8 inputs that can be used to activate file numbers 1 through 8 with a contact closure or a
transistor switch across the corresponding input terminals. The optional digital voice expansion modules ("DV-EM") can provide 32
inputs. When a DV-EM is used, the 8 inputs in the SAFEPATH panel cannot be used. Up to 8 DV-EM’s can be connected to a
SAFEPATH panel for a total of 256 inputs.
Make sure that SAFEPATH audio outputs are connected to properly operating, listed compatible notification appliances so that
message files assigned to that channel can be played.
The SAFEPATH panel is provided with a serial port, through which up to 999 files can be activated with digital commands. The
contact inputs in the SAFEPATH panel or DV-EM's can be used along with the serial port. A command is required to start a
message, and a second command is required to stop the message. The operation is similar to closing an input contact (start) and
then reopening the contact (stop).
Up to four audio output channels are available with the SAFEPATH panel. The output from each audio channel may be either a 15
Ohm line level output or a 25V or 70.7V amplifier output. The 15 Ohm line level output can drive up to forty 600 Ohm line level input
appliances. The 25V or 70.7V amplifier can drive up to 40 Watts of speaker notification appliances.
Message Files
All messages are stored in files within the digital voice module’s message memory. Up to 999 message files can be stored. There
is no limit on the length of a message file (except for the limit imposed by total memory in the unit). There are two types of message
files: voice files and string files. Voice files are created by storing audio directly into the selected file number. String files are
created by storing file numbers of other message files into the selected file number. (See "file" and "string" definitions in glossary.)
Each message file must be assigned a priority level from 1 to 5 (1 is highest, 5 is lowest) and an output channel from 1 to 4. See
“Output Channels”, “File Priority”, and “Playing Files” sections for additional information.
WARNING: EACH MESSAGE MUST BE ASSIGNED ITS INTENDED OUTPUT CHANNEL AND PRIORITY LEVEL
DURING PROGRAMMING OR THE MESSAGE WILL NOT BE PLAYED WHEN AND WHERE REQUIRED.
THIS COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR
OTHERS.
String files reduce the message memory requirements by allowing many different message files to be created with a relatively small
library of voice files that contain custom words or phrases and using one or more of the six string file commands. The string file
commands are ADD, PAUSE, COMMON REPEAT, FILE REPEAT, TELEPHONE, and END. ADD is used to add a previously
created message file to the string. PAUSE is used to add a period of silence to the string. COMMON REPEAT is used to play the
next entered file number multiple times. FILE REPEAT is used to play the entire file again a specified number of times after the file
has been de-activated. TELEPHONE is used to add telephone numbers to a string file. END is used to finalize the string.
The following is an example of creating string files from a small library of voice files using the ADD command.
The following voice messages are recorded into the indicated file numbers:
“There
is
a
fire
on
the” into
file
number
100
“First”
into
file
number
101
“Second” into
file
number
102
“Third” into
file
number
103
“Floor” into
file
number
104
Create three string files as indicated:
File 1: ADD 100, ADD 101, ADD 104, END
File 2: ADD 100, ADD 102, ADD 104, END
File 3: ADD 100, ADD 103, ADD 104, END
When file number 1 is selected to play, “There is a fire on the first floor” will be played. When file number 2 is selected to play,
“There is a fire on the second floor” will be played. When file number 3 is selected to play, “There is a fire on the third floor” will be
played.
Summary of Contents for SAFEPATH SAPE-1AB
Page 19: ...SAFEPATH Manual Sheet 20 of 78 Rev C April 1999 Figure 3 Operator s Console...
Page 24: ...SAFEPATH Manual Sheet 25 of 78 Rev C April 1999 Figure 5 DX 100 Module Illustration...
Page 25: ...SAFEPATH Manual Sheet 26 of 78 Rev C April 1999 Figure 6 DX 200 Module Illustration...
Page 28: ...SAFEPATH Manual Sheet 29 of 78 Rev C April 1999 Figure 7 SAFEPATH Panel Mounting...
Page 32: ...SAFEPATH Manual Sheet 33 of 78 Rev C April 1999 Figure 8 Typical System Block Diagram...
Page 62: ...SAFEPATH Manual Sheet 63 of 78 Rev C April 1999 Figure 30 Module Layout of the SAFEPATH Panel...
Page 63: ...SAFEPATH Manual Sheet 64 of 78 Rev C April 1999 Figure 31 SAFEPATH Panel Block Diagram...
