Installation Instructions

Model HTRI-M
Addressable Interface Module

The SIEMENS Model HTRI-M Series

Addressable interface module inter-
EAR
TH
GND
LINE
2 LINE

faces direct shorting devices to the

1

ORG
ORG

FireFInder-XLS System’s Addressable GRN

BLK
RED

Loop Driver circuit. It is also approved ALL C

ONNE
CTIO
NS AR
E PO
WER
for 1076, Proprietary Burglary. LIMIT
ED

HTR
The HTRI-M can monitor a normally I-M
open or closed dry contact and it can
report the status of the contact.

Figure 1
HTRI-M Module

PROGRAMMING Refer to Figure 1 to locate the red and black DLC loop circuit wires of the HTRI-M.

Connect the Addressable Loop Driver circuit wires of the HTRI-M to the SIEMENS
Model DPU Programmer/Tester. Use the cable provided with the Programmer/Tester
and the 2 alligator clip to banana plug adapters provided.

To Prevent Damage To The DPU:

DO NOT connect a HTRI-M to the DPU until all field wiring is removed from the
red and black DLC loop circuit wires of the HTRI-M.

Connection from the DPU to the HTRI-M is not polarity sensitive. Refer to Figure
3 for the proper connections to the control panel.

(Refer to Figure 2.) Follow the instructions in the DPU Programmer/Tester Manual
(P/N 315-033260) to program the desired address into HTRI-M.

Record the device address on the label located on the HTRI-M. The HTRI-M can now
be installed and wired to the system.

Siemens Building Technologies

P/N 315-034000-2 Fire Safety
 NORMALLY CLOSED SWITCHES NORMALLY OPEN SWITCHES
(SEE NOTE 4) (SEE NOTES 2, 3 AND 5)

END OF LINE END OF LINE

RESISTOR RESISTOR
3.6K, 1/4W 3.6K, 1/4W

NOTES:
1. There can be any number of normally closed or normally open switches.
2. The end of line resistor must be located at the last switch.
3. Do not wire a normally closed switch across the end of line resistor.
4. Only for use with security and status applications.
5. Do not use N.O. switches for security applications.
Figure 2
Wiring Switches

WIRING (Refer to Figure 3.) Refer to the wiring diagram and wire the addressable interface
module accordingly.

Recommended wire size: 18 AWG minimum

14 AWG maximum

SUPERVISED SWITCH
(SEE NOTES 1 AND 2)
ORANGE 3.6K, ¼W
END OF LINE DEVICE
ORANGE (SEE NOTE 2)

HTRI-M GREEN GROUND

(SEE NOTE 5)

BLACK LINE 2 FROM FIREFINDER-XLS

CONTROL PANEL ADDRESSABLE
RED LINE 1 LOOP DRIVER CIRCUIT OR FROM
PREVIOUS ADDRESSABLE DEVICE
LINE 2
TO NEXT
LINE 1 ADDRESSABLE DEVICE
Figure 3
Installing the HTRI-M Wiring

NOTES:
1. All supervised switches must be held closed and/or open for at least a quarter of a second to guarantee detection.
2. End of line device: 3.6K, 1/4W resistor, P/N 140-820185. For Canadian applications, use Model EL-33 with 3.6K, 1/4W resistor.
3. HTRI-M is polarity insensitive. Line 1 and Line 2 can be either line of the loop.
4. The supervised switches have the following ratings:
Voltage maximum: 27 VDC
Current maximum: 3.5mA during polling
Contact resistance maximum: 10 ohms
Maximum cable length: 200 feet (18 AWG) CLine to line: 0.02uF CLine to shield: 0.04uF
Max line size: 14 AWG Min line size: 18 AWG

Ground shield ONLY at the specified location on the Control Panel.

5. The green wire must be connected to earth ground.
a. Use wire nuts to pass the shield wire through the electrical box with NO connection to the device green wire.
b. Use shielded wire to connect the switch wiring.
c. Tie the switch wiring shield to earth ground.
6. For proprietary burglary application:
a. Use a TSW-1/2 tamper switch to monitor the main enclosure.
b. Monitor each HTRI-M related to this application continuously by using a listed motion detector (to prevent tampering).
7. In supervisory: HTRI-M draws 1.5mA
8. All circuits are power limited.

Siemens Building Technologies 2 P/N 315-034000-2

Fire Safety
Mounting The SIEMENS Model HTRI-M mounts directly into a single gang switchbox (user
supplied)

Connect the appropriate wires using wire nuts.Tuck the HTRI-M module inside the
electrical box and dress the wiring as required. (See Figure 4.)

DO NOT
USE REAR
CONDUIT
ENTRY

SINGLEGANG
ORG
EA
GNDRTH
SWITCHBOX
(USER SUPPLIED)
ORG
LI
NE
AL 2 LI
L CO GRN NE
1
NN
EC
TIO
NS BL
AR K
E PO RE

HT
D
WER
LIM

RI ITED

-M

BLANK SINGLEGANG
SWITCHPLATE
(USER SUPPLIED)

Figure 4
Mounting the HTRI-M

Siemens Building Technologies 3 P/N 315-034000-2

Fire Safety
Siemens Building Technologies, Inc. Siemens Building Technologies, Ltd.
8 Fernwood Road 2 Kenview Boulevard
Florham Park, New Jersey 07932 Brampton, Ontario L6T 5E4 CN P/N 315-034000-2