Installation Guide for SECURITY BRANDS models including: 37-LC1, 37-LE1, 37-STAK2, 37-LC1 Ascent Link Controller, 37-LC1, Ascent Link Controller, Link Controller, Controller

SBI Install Guide Ascent Link Controller IG-37LC1-EN-US Rev A DRAFT v2

© 2025 Security Brands, Inc. All rights reserved.

[PDF] Install GUIDE - Security Brands, Inc.

Ascent terminals can be unplugged to make wire connections easier. We recommend using 18-gauge stranded wire for all connections. Consult gate opener manual for ...

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SBI Install Guide Ascent Link Controller
Install GUIDE

1

Unpack box and make sure you have all items shown here.

Controller

Screwdriver

1 of 2
Model 37-LC1
 WARNING 
AUTOMATIC GATES CAN CAUSE SERIOUS INJURY OR DEATH!
ALWAYS CHECK THAT THE GATE PATH IS CLEAR BEFORE OPERATING!
REVERSING OR OTHER SAFETY DEVICES SHOULD ALWAYS BE USED!

2

Remove screws and open unit cover for wiring and setup.

r IMPORTANT r
This Ascent unit WILL NOT WORK without an Ascent primary controller (not included)!
If you need help or have any questions, please contact Summit Control at (972) 474-6422.

r IMPORTANT r
This Ascent Link unit is a 900-MHz device designed to work well up to 100 feet.
If you need greater range, you will need to purchase an Ascent Link Extend (37-LE1).
We also offer the Ascent Link 1000-Foot Starter Kit (37-STAK2) with all you need to connect your Ascent cellular unit as well as an
Ascent Link Extend.



STOP



This is a cellular accessory for a gate or door. An uninterrupted cellular connection CANNOT BE GUARANTEED!
An emergency egress or primary entry mechanism SHOULD ALWAYS BE USED! (transmitter, fire box, mechanical release)
Consult with your dealer, distributor, and/or system designer for more information.

Scenario 1
Go to Step 3A
SecurePass CR1
Proximity Card Reader Electric Strike

Ascent Link
Controller

Scenario 2
Go to Step 3B

Ceiling
OR

Ascent
Primary Unit

Ascent Link
Controller
Gate
Ascent Link and Gate Operator
Driveway

What's what?
All important components labeled
Reset Button For reset procedures. Scan QR code on next page
for instructions.
Relay Terminals For wiring to gate operator or
door device. See Page 2.
Digital Input Terminals For connecting accessory devices.
Scan QR code on next page for wiring instructions.
Wiegand Terminals For wiring to Wiegand devices.
See Page 2.
Power Terminals For wiring to power. See Page 2.

Unit shown with cover removed. Internal wiring not shown for clarity.
DIP Switches For pairing with primary unit. See Page 2.
Power Indicator LED
Network Status LED Status indicated by color:
Blue - connected to primary unit Magenta (solid) - connected to Link unit but not primary unit Magenta (flash) - no connection Relay Status LED Relay is active when lit
 CAUTION 
Tighten both cable glands, and seal any openings created in the enclosure. Failure to follow these instructions
can damage the unit!

Call (972) 474-6422 Email support@summitcontrol.com
We are available Mon­Fri / 8am­5pm Central

FLIP PAGE TO CONTINUE

Install GUIDE

A3 Connect to card reader and strike / mag lock.

Feed wires through one or both cable glands, and connect as shown using included screwdriver.

+­

External Power Source (12­24-VDC)

Suitable 12-VDC Power Supply (not included)

2 of 2
Model 37-LC1
 CAUTION 
Disconnect power before connecting Wiegand devices.
Failure to disconnect power can damage the unit!

NEG. (­) POS. (+) DATA 0 DATA 1 GND +12V LED 1 LED 2 N/C COM N/O
LED 2 LED 1 DATA 1 DATA 0 +12V GND

Ascent terminals can be unplugged to make wire connections easier.

POWER
12­24 VDC

WIEGAND
Ascent Link Unit

RELAY

+­ +­

OR
Electric Strike

Card Reader
(40-100 is shown)

Mag Lock
(57-1200MAG is shown)

B3

Connect to relay.
Feed wires through one or both cable glands, and connect as shown using included screwdriver.

Suitable 12-VDC Power Supply (not included)

Ascent terminals can be unplugged to make wire connections easier.

We recommend using 18-gauge stranded wire for all connections.
Consult gate opener manual for exact connections. Terminals vary widely across manufacturers/models.
Use QR code on this page for additional wiring diagrams.

 CAUTION 
When connecting the power supply, remember to connect positive to positive and negative to negative to avoid damage.
Reversing polarity can damage the unit and void
the warranty!
More Resources

NEG. (­) POS. (+) N/C COM N/O POWER (+) POWER (­) COM RADIO FREE EXIT COM COM REVERSE LOOP COM OPEN STOP CLOSE

POWER
12­24 VDC

Ascent Link Unit

RELAY

Gate Operator

4

Match DIP switches on keypad unit with DIP switches on primary unit to

get units ready for pairing.

(Default is 1 off, 2 on, 3 on, 4 off.)

=

1234

1234

© 2025 Security Brands, Inc. All rights reserved.

5

Confirm primary and Ascent Link units have power, and then scan QR code for

help completing pairing process.

N

Ascent Link Unit Primary Unit

INSTALLATION COMPLETE!
Your new Ascent Link unit is ready to use.
IG-37LC1-EN-US Rev. A (5/2025)


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