SIEMENS SLT-1 Leased Line or Municipal Tie Module Instruction Manual
- June 9, 2024
- SIEMENS
Table of Contents
** SLT-1 Leased Line or Municipal Tie Module
Instruction Manual**
Installation Instructions
Model SLT-1
Leased Line/Municipal Tie Module
OPERATION
The Model SLT-1 module from Siemens Industry, Inc., is used with the SXL-EX
System to provide connections for Leased Line and/or Municipal Tie. Either or
both connections can be used. Terminal Block 1 (See Figure 1) provides the
connection to TB3 on the Main Board.
If the green LED (labeled DS1) on the module is pulsing, it indicates that the
module is active.
Effective with SLT-1 Rev. 1.1 and higher, and SXL-EX Rev. 2.0 or higher, the
SLT-1 will energize the municipal tie connection for one minute after the last
alarm received at the panel. Modules with firmware below this level will
energize the municipal tie connection until the panel is reset.
With SLT-1 Rev. 1.1 and higher and SXL-EX Rev.
2.0 or higher, the municipal tie box can be reset before the panel is reset.
The SLT-1 continues to energize the Leased Line connection until the panel is
reset for all firmware versions. The SLT-1 causes a trouble on the display
panel when any of the following three conditions occurs:
- There is an open on the data line.
- No SLT-1 module is connected to the System, though there is an address for the module in the System configuration.
- An SLT-1 module is connected to the system, but there is no address for it in the System configuration.
INSTALLATION
Remove all system power before installation, first battery and then AC. (To power up, connect the AC first and then the battery.)
Installation in SXL-EX System (Refer to Figure 2):
Install the SLT-1 in the upper right-hand portion of the EN-SX enclosure
according to the following steps.
- Insert the four 6-32 x/2 standoffs over the four studs in the upper right-hand corner of the SXL-EX enclosure as shown in Figure 2.
- Place the upper four holes of the SLT-1 board over the four standoffs in the upper right-hand portion of the EN-SX enclosure. Using the four 6-32 screws provided, fasten the SLT-1 board to the standoffs.
Mounting the SLT-1 in an SXL-EX System
In an Existing SXL® System
(Refer to Figure 3):
To place the SLT-1 on the Main Board of an existing system, first remove the
existing Display Board and its cover according to the following steps.
-
Remove the Display Cover from the Display Board as shown in Figure 3. Discard its top two standoffs.
-
Unplug the ribbon cable from the Display Board at jumper JP4 on the Main Board.
-
Remove the Display Board from the SXL Main Board by unscrewing the four 6-32 screws and setting them to one side.
-
Remove and discard the two standoffs that were supporting the two upper corners of the Display Board.
-
Use the four 6-32 x 1-/8 standoffs, the 6-32 screw, and the two 7 /16 standoffs provided as follows:15
• Fasten one of the longer standoffs provided to the back of the upper left- hand corner of the SLT-1 with the screw provided.
• Remove the screw from the upper righthand corner of the Main board.
• Screw another long standoff to the upper right-hand corner of the Main board.
• Screw the last two long standoffs provided to the Main board as shown in Figure 3. -
Place the SLT-1 module on the standoffs that were installed in Step 5 above.
-
Fasten the two short standoffs remaining to the bottom two corners of the SRC-8 board (They are supports for the Display Board).
-
Once the SLT-1 is in place, re-install the Display Board by reversing Steps 1-3 above.
Mounting the SLT-1 in an Existing SXL® System
PROGRAMMING
Use SXL Program Level 9 to program the SLT-1 module. (Refer to the SLX-EX
Manual, P/N 315095997.)
-
To enter the System:
a. Press the RESET and DRILL keys at the same time.
b. Enter your password (Refer to Enter Password under PROGRAM MODE in the Manual.)
c. Press the SILENCE key to confirm the information for the system.
d. An A should display in the 7-segment display.
e. If an F appears, repeat the process until an A appears. -
To enter the Program Mode:
a. Press the ACK key once.
b. Note that a P displays in the 7-segment display.
c. Be sure the PROGRAM/TEST LED is lit. -
To select the desired Program Mode level:
a. To select Program Level 9, press the RESET button 9 times.
b. Press SILENCE. -
To program the SLT-1:
a. Program Level 9 has one sublevel. The sublevel is displayed on the 7-segment display following the hyphen (-).
b. Note that the top yellow LED on the display is lit.
• Press the RESET key three times to turn on the fourth yellow LED.
• If the fourth red LED is on, the SLT-1 is activated.
• If the fourth red LED is not on, the SLT-1 is not activated.
c. Press the DRILL key to toggle between ON (activated) and OFF (de-activated) as -
To exit the system:
a. Press the ACK key until an L ape pears on the display.
b. Press SILENCE to exit the program.
SLT-1 Electrical Characteristics
Supervisory: 50mA
Alarm: 345mA
WIRING
(Refer to Figure 4)
Connect TB1 on the SLT-1 to TB-3 on the SXL-EX Main Board, being sure to
observe the terminal labels (+24V, -V, DATA, EARTH).
Electrical Connections for NFPA 72 Municipal Tie
(Refer to Figure 4)
-
All wiring must be in accordance with Article 760 of NEC or local building codes.
-
Minimum wire size: 18 AWG
-
Electrical Ratings:
Trip Coil: 14.5 ohms
Trip Current: 240mA DC max Supervisory Current: 1mA DC
Voltage: 18.3-24.1 VDC open circuit voltage Total external resistance should not exceed 22.5 ohms. -
Minimum emergency power:
60 hour standby
5 minute alarm
Electrical Connections for NFPA 72 Leased Line (Refer to Figure 4)
-
All wiring must be in accordance with Article 760 of NEC or local building codes.
-
Leased line is power limited to NFPA 70 Article 760.
-
Leased line circuit rating: 24 VDC open circuit load must be a compatible polarity reversal labeled remote station receiver unit.
Voltage: 18.3-24.1 VDC
Rated current: 3mA to 9mA, alarm/supervisory
External circuit resistance: 2K to 5K ohms -
Minimum emergency power:
60 hour standby
5 minute alarm
BATTERY CALCULATIONS
Battery backup is required for the SLT-1. To determine the size battery you
need, refer to the battery calculation table in the SXL-EX Manual, P/N
315-095997.
MAINTENANCE AND TESTING
No periodic maintenance is required; however, Siemens Building Technologies,
Inc. does recommend periodic testing.
Note: Before testing, you MUST notify the personnel in charge of the Fire
Alarm panel, since the test may disrupt normal business operations. In
addition, you MUST notify the local Fire Department if the department is
connected to the municipal tie and/or the leased line.
Alarm Operation
Effective with SLT-1 Rev. 1.1 or higher and SXL-EX Rev. 2.0 or higher, the
municipal tie connection voltage returns to normal one minute after the last
alarm. If the module is connected to the municipal box, the panel will
display Fault code 5, indicating that the box needs to be reset. With SLT-1
Rev. 1.1 or higher and SXL-EX Rev. 2.0 or higher, the municipal tie box can
be reset before the panel is reset.
Test the leased line and the municipal tie for alarm operation by:
- Activating an initiating device on a zone configured for alarm.
- Confirming the line reversal of the municipal tie (duty cycled) and the leased line.
Supervisory Operation
The municipal tie and leased line will not change state on any supervisory
event.
Trouble Operation
The leased line interface can be tested for trouble operation by:
- Disconnecting a wire from a IDC zone at the control panel.
- Confirming the leased line interface is open circuited (0 volts).
SLT-1 Supervision
Check SLT-1 supervision by:
- Disconnecting the DATA line from TB1 on the module.
- The control panel displays the fault codes 5 and 8.
TROUBLESHOOTING
If the municipal tie and the leased line fail to operate:
- Check DS1 for activity. If there is no activity, check for proper wiring connections, no power, or some system problem.
- Check that there are 24 volts between the TB1 terminals +24V and -V.
- If the problem continues, replace the module.
- Check the new module for correct wiring before powering up the system.
If Fault code 8 (Auxiliary Port Fault) appears on the display:
- The module is connected but is not configured. Refer to SLT-1 Programing instructions.
- Check the module for an error in the wiring.
If Fault code 5 (Municipal Tie Fault) appears on the display:
- There is a wiring fault: an open circuit between the SLT-1 module and the municipal tie box.
- The municipal tie box needs to be reset.
****Siemens Industry, Inc.
Building Technologies Division
Florham Park, NJ
P/N 315-093285-10
Siemens Building Technologies, Ltd.
Fire Safety & Security Products
2 Ken view Boulevard
Brampton, Ontario
L6T 5E4 Canada
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