The Ldm-E32; Connectors On The Ldm-32 And Ldm-E32 - Honeywell NOTIFIER LDM Series Instruction Manual

Lamp driver module
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LDM Features

2.3 The LDM-E32

Each LDM-E32 expander module provides 32 additional lamp/LED driver outputs from J5, J6, J7 and J8. The expander module has a
slide switch SW4 for selecting alarm or alarm and trouble annunciation and an input for a local lamp test switch. In alarm mode, use only
one LDM-32 and one LDM-E32 for a maximum of 56 alarm indicators and 8 system status indicators. In alarm/trouble mode, use one
LDM-32 and three LDM-E32s for a maximum of 56 alarm indicators, 56 trouble indicators, 16 status indicators and 64 optional control
switch inputs. Multiple sets of LDM-32s with LDM-E32 expanders increase the system annunciation capabilities beyond 56 zones or
points. This is possible by various settings of address switches SW1 and SW2 on the LDM-32 (refer to the appendix for the appropriate
FACP). Each LDM-E32 is supplied with a 26 conductor expander ribbon cable, 4 standoffs and 4 screws.

2.4 Connectors on the LDM-32 and LDM-E32

J1 - Switch Matrix
E32 via J1 as shown in Figure 4.10. To determine which switch function each point will perform in a specific FACP (Fire Alarm Control
Panel), refer to the appropriate Appendix for your FACP. Switch functions on intelligent panels such as NFS2-3030, AM2020/AFP1010,
etc. are completely programmable.
J2 - Ribbon Cable Connection Between Master and Expander Modules to J3
from J2 on the LDM-32 or LDM-E32 (see Figure 3.3) to J3 on adjacent LDM-E32s. The ribbon cable carries power, ground and signal-
ing from the LDM-32 to up to three LDM-E32s. The preformed cables are supplied in fixed lengths of 24 and 48 inches.
J3 - Ribbon Cable Connection From J2
or LDM-E32. Refer to Figure 3.3.
J4 - Keyswitch Input
switch. Keyswitch contacts must be Normally Closed. The keyswitch prevents unauthorized use of remote control switches wired to J1.
J5, J6, J7 and J8 - Lamp/LED Driver Outputs
LDM-E32. Each driver is rated for a maximum of 30 volts and a current of 100 mA and is programmable. Each bipolar Darlington open
collector driver output must be current limited by an external resistor. 8-Point Shift and Flash functions are selectable by DIP switch
SW3 (refer to Section 2.5, "Switches"). Lamp/LEDs may function in 'alarm only mode' or 'alarm/trouble mode' as selected by switch
SW4. Use the charts and examples shown in the appendix for your FACP for additional information.
J9 - Lamp Power/System Trouble
lamps/LEDs used in a custom graphic annunciator. The current limit of J9 pin 1 is dependent upon the current limits of the external
power source being used. J9 pin 3 is a driver output for system trouble indication only. J9 pin 2 connects to system common.
J10 - Relay Expander
(normally open) contacts.
10
J5
J4
Security Key
Switch Terminal
Terminal for max.
of 16 external
control switches
J1
Alarm Only or
Alarm/Trouble
Select Switch
Up to 16 optional external control switches and a local lamp test switch may be attached to the LDM-32 and LDM-
This connector supports a single 26 conductor ribbon cable from J2 of the previous LDM-32
This two pin connector is provided as an input on LDM-32 and LDM-E32 modules for an external security key-
Each connector provides 8 driver outputs for a total of 32 drivers on each LDM-32 and
Connector J9 is located only on the LDM-32. J9 pin 1 provides 24 volts regulated power to all
Cables to the optional LDM-R32 Relay Expander Module which can be used to provide up to 32 dry Form-A
Output Connectors for
Wiring to LEDs
J6
OUTPUTS J7
SW ITCH
MA TRIX
SW 4
Figure 2.2 LDM-E32
LDM Series Instruction Manual — P/N 15885:H3 8/12/2019
J8
Relay Power
Ribbon Cable
J10
Connection
Ribbon Cable
Connection to
next LDM-E32
J2
On-line LED:
Flickers to
indicate EIA-485
Communication
Active
A single 26 conductor ribbon cable may be connected
The LDM-E32

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