DMP Electronics 736P Radionics Installation Manual
736P
INSTALLATION GUIDE
736P Radionics™ POPIT Interface Module
Description
The Model 736P Radionics™ POPIT Interface Module allows a Radionics™ POPIT System to interface to a DMP panel,
while maintaining the existing Radionics™ wiring.
The 736P is supervised and connects to either the DMP Keypad bus or LX-Bus™ and supports up to 32 Keypad bus
zones and up to 100 LX-Bus zones.
• For XR100 Series, connect directly to the on‑board LX‑Bus.
• For XR500 Series, connect directly to the on‑board LX‑Bus or to an interface card.
• For an XR150/XR350/XR550 Series, connect directly to the LX500 ‑ LX900 connectors on the panel.
All re device installations must be in accordance with the manufacturer's instructions, NFPA standards, and the
Authority Having Jurisdiction (AHJ) requirements.
Wiring Distance
The maximum wire distance between any 736P and the DMP Keypad bus or LX-Bus circuit is 10 feet. To increase the
wiring distance, install an auxiliary power supply, such as a DMP Model 505‑12. For listed installations, the power
supply must be listed for re protective signaling systems, regulated, and power limited. Refer to the 710 Bus
Splitter/Repeater Module Installation Guide (LT‑0310) for complete information.
Radionics™ Terminology
The Radionics™ ZONEX (Zone Expansion system) is the zone expansion bus, much like the DMP LX-Bus. A POPEX
(Point Of Protection Expander) is the device that provides the ZONEX, similar to a DMP 481 Zone Expansion Interface
Card that provides an LX-Bus.
The POPIT (Point Of Protection Input Transponder) is a device on the ZONEX that provides a point to connect a
protection device to, much like a DMP 711 Single Point Zone Expander Module. Finally, the OctoPOPIT is a ZONEX
device that provides several points to connect protection devices to, similar to a DMP 714‑8 Zone Expander and a
481 combined. A POPEX is not required when using an OctoPOPIT.
Compatible Radionics™ Devices
The 736P Module supports the following Radionics™ POPEX and OctoPOPIT devices:
• D8125 POPEX Zone Expander
• D8128A OctoPOPIT for 63‑point bus
• D8128C OctoPOPIT for 63‑point or 119‑point bus
Mounting to Walls
The 736P ships installed in a decorative high impact plastic case that mounts directly to walls, backboards or
other at surfaces. Wire entrances on the case back and front make installation easy. The plastic case bottom half
contains two screw holes for mounting the case on single-gang switch boxes or rings.
Mounting in Panel Enclosures
The 736P Module can also be installed in DMP enclosures using the standard 3-hole
pattern.
1. Mount the plastic standoffs to the enclosure using the three included Phillips head
screws.
2. Insert the screws from the outside of the enclosure through the holes and into the
plastic standoff which mounts on the inside of the enclosure and tighten.
3. After the securing the standoffs onto the enclosure, snap the 736P onto the
standoffs.
Figure 1: 736P Mounting
Wiring the 736P
The 736P interfaces with a DMP panel using the keypad bus, LX‑Bus or LX500‑XL900 connectors. After setting the
jumper headers, wire the 736P to the panel and to the Radionics™ modules as described in the following sections
and as illustrated in Figure 2.
DMP Bus
Radionics™
Bus
Receive Data
Transmit Data
Receive Data
Transmit Data
All circuits are supervised Class B style 3.5.
All circuits are power limited Class 2.
DRXD
DTXD
ZRXD
ZTXD
Connect to
Keypad Bus
or LX-Bus
736P DMP Bus Header (J1)
When connecting to the Keypad bus, place the J1 jumper across the two bottom pins marked KEY. When connecting
to the LX-Bus, place the J1 jumper across the two top pins marked LX.
736P DMP Bus Connector (J2)
For Keypad bus connection, connect the provided dual‑ended 4‑wire harness from the DMP BUS header (J2) to the
panel J8 header.
736P to XR100/XR500
For LX‑Bus connection, plug the provided dual‑ended 4‑wire harness from the DMP BUS header (J2) onto the panel
on-board LX-Bus (J22) or an installed interface card.
736P to XR150/XR350/XR550
For LX‑Bus connection, plug the provided dual‑ended 4‑wire harness from the DMP BUS header (J2) onto the panel
on‑board LX500 ‑ LX900 connectors on the panel.
Wiring Specications for Keypad or LX-Bus
1. DMP recommends using 18 or 22‑gauge unshielded wire for all keypad and LX-Bus circuits. Do Not use twisted
pair or shielded wire for LX-Bus and keypad bus data circuits. To maintain auxiliary power integrity when
using 22‑gauge wire do not exceed 500 feet. When using 18‑gauge wire do not exceed 1,000 feet. Install an
additional power supply to increase the wire length or add devices.
2. Maximum distance for any one circuit (length of wire) is 2,500 feet regardless of the wire gauge. This distance
can be in the form of one long wire run or multiple branches with all wiring totaling no more than 2,500 feet.
As wire distance from the panel increases, DC voltage on the wire decreases.
3. Maximum number of devices per 2,500 foot circuit is 40.
Note: Each panel allows a specic number of supervised keypads. Add additional keypads in the unsupervised
mode. Refer to the panel installation guide for the specic number of supervised keypads allowed.
4. Maximum voltage drop between the panel (or auxiliary power supply) and any device is 2.0 VDC. If the voltage
at any device is less than the required level, add an auxiliary power supply at the end of the circuit. When
voltage is too low, the devices cannot operate properly.
For additional information refer to the panel installation guide and LX‑Bus/Keypad Bus Wiring Application Note
(LT‑2031) or the 710/710F Installation Guide (LT‑0310).
Zone Expander Connector (J3)
Connect the Radionics™ POPEX and OctoPOPIT modules to the (J3) connector on 736P ZONE EXPANDER. The
maximum wire distance between the 736P and any Radionics™ POPEX and OctoPOPIT is 10 feet.
ZONEX Bus Header (J4)
This jumper selects the type of Radionics™ ZONEX Bus that connects to the 736P module. To select a 63‑point
(horizontal or vertical) bus, place the J4 jumper across the two top pins marked 63. To select the expanded,
119‑point bus, place the J4 jumper across the two bottom pins marked 119. See Figure 2.
Digital Monitoring Products 736P Installation Guide
2
LX
63
J4
J1
KEY
119
DMP Bus
RED
J2
Red
Yellow
Green
Black
Figure 2: 736P Wiring
736P Radionics™ POPIT
Interface Module
BLK
Zone Expander
J3
ZX
+AUX
DOUT
COM to COM
COM
DOUT to IN
ZX to OUT
+ AUX to AUX
Radionics™
POPEX or
OctoPOPIT
COM
IN
OUT
AUX
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