Lowell SEQR-4 Quick Start Manual Download Page 2

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Spec 1604

Model SEQR-4  Rev. 02-02-21 | pg. 2/3

Step 1

Step 2

Step 3

Step 4

Includes power supply 

ALARM SYSTEM INTERFACE:

If required by local building code, facility 

usage, or the Fire Marshal; the system 

functions can be overridden and the 

system controlled by contact closures 

provided by the fire alarm panel or other 

similarly installed device. A maintained 

contact between the ‘com’ terminal and 

any of the terminals shown will provide 

the following functions. 

CAUTION: 

 Do not allow alarm system 

to make more than one of the following 

contacts at the same time—controller 

board damage may result.

 

•   Lock  Off: 

A maintained contact 

between the ‘com’ terminal and the 

‘lock off’ terminal will turn the system 

off and keep it off regardless of other 

switch activations. If the system is 

already off, it will remain off.

•   Lock  On:

 A maintained contact 

between the ‘com’ terminal and the 

‘lock on’ terminal will turn the system 

on and keep it on regardless of other 

switch activations. If the system is 

already on, it will remain on.

•   Switch  Lock:

 A maintained contact 

between the ‘com’ terminal and the 

‘switch lock’ terminal will lock the 

system in its current state, either on 

or off, regardless of any other switch 

activations. 

RPC CONNECTIONS:

Connect equipment to Lowell RPC Series 

remote power controls that feature classic 

connections (not pass-through), and connect 

the RPCs to one of the four steps on the 

sequencer using two connectors (Common, 

Switched Relay). The sequencer allows up to 

10 RPCs to be connected in parallel on each 

of the four circuits. 

NOTE:  Common connections from multiple RPCs 

controlled by different sequence steps can be 

consolidated into one conductor and connected to 

any common terminal at the sequencer.

REMOTE SWITCH CONNECTIONS:

Lowell RPS Series switches with 

MOMENTARY closure and a single LED can 

be connected to control the sequencer from 

remote locations. Up to eight switches may 

be connected in parallel. Select switches with 

rocker or key activation. 

Maximum wire distances:   

24-gauge = 20,000 ft.;  22-gauge = 31,200 ft.; 

18-gauge = 76,800 ft. 

RPC Series remote power controls 

use two connectors (common, 

switched relay)

Accessory systems contacts  

(normally open, common, normally closed). 

RPS Series MOMENTARY switches 

that feature one LED use three 

connectors.

In

d.

Sw

itch

V+

Lock Switches

Lock ON

Lock OFF

Com

Common

Switched Relay

Normally Closed

Common

Normally Open

In

d.

Sw

itch

V+

Lock Switches

Lock ON

Lock OFF

Com

Common

Switched Relay

Normally Closed

Common

Normally Open

In

d.

Sw

itch

V+

Lock Switches

Lock ON

Lock OFF

Com

Common

Switched Relay

Normally Closed

Common

Normally Open

AUXILIARY DRY CONTACTS:  

Each of the four outputs features accessory 

contacts (Normally Open, Common, Normally 

Closed) with contact rating of 5A max. for 

connection to accessory systems or indicator 

devices (projector screens, lighting, blinds, etc.) 

Common

Switched Relay

Normally Closed

Common

Normally Open

Common

Switched Relay

Normally Closed

Common

Normally Open

In

d.

Sw

itch

V+

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