GSC356x In-Wall Mounting Kit – Quick Installation Guide

  • Updated on June 19, 2026 PDF Download

Introduction

The GSC356X-FM Flush-Mount Kit is an optional mounting accessory designed for the Grandstream GSC3560 and GSC3565 HD Intercom and Facility Control Stations. It enables a clean, professional in-wall installation by recessing the device into the wall, reducing its protrusion, and enhancing the overall appearance of the deployment. The kit includes the flush-mount enclosure, mounting hardware, installation template, and cable management accessories required for secure installation. It is ideal for environments such as office buildings, residential complexes, schools, healthcare facilities, and commercial premises where a sleek and integrated mounting solution is preferred.

Package Content

Instruction card with printed text and a circular symbol (item a) — x1 for this part of the kit.
Package Content
LetterComponentQuantityDescription
aWall Cutout Template1Template used to mark the wall opening and drilling positions for flush mounting.
bFlush-Mount Back Box1Main enclosure that is recessed into the wall and houses the GSC356X device.
cST 3.5 × 33 mm Screws with Anchors5Wall-mounting screws and anchors used to secure the back box to the wall.
dM4 × 14 mm Screws5Screws used for attaching the mounting components and securing the device assembly.
eCable Grommet1Protective grommet used to route cables through the back box while protecting them from damage.
fL-Shaped Hex Key1Tool provided for tightening and securing mounting hardware during installation.
gCable Tie1Used for cable organization and strain relief inside the flush-mount enclosure.
hM3 × 6 mm Screw1Special retaining screw used to secure internal mounting components.
iQuick Installation Guide (QIG)1Installation guide containing mounting instructions and setup information.
jRegulatory & Safety Information1Documentation containing regulatory compliance, warranty, and safety information.

Flush Mount Installation

Step-by-step instructional diagram for mounting a wall panel: removing a front cover, inner frame installation, door wiring and hardware assembly, attaching components, and securing the final cover.
Flush Mount Installation

Follow the steps below to install the GSC356X-FM Flush-Mount Kit:

Mark and Prepare the Wall Opening

  • Use the supplied wall cutout template (a) to mark the mounting area on the wall.
  • Cut an opening measuring 108.5 mm × 188.5 mm (4.27″ × 7.42″).
  • Drill the required mounting holes (Ø 6.5 mm) according to the template.

Install the Flush-Mount Back Box

  • Insert the wall anchors and route the network and power cables through the wall opening.
  • Position the flush-mount back box (b) inside the opening.
  • Secure the back box to the wall using the supplied mounting screws and anchors (c).

Secure the Cable Management Components

  • Install the cable grommet (e) into the designated opening.
  • Route the cables through the grommet and organize them using the cable tie (g).
  • Secure the cable management assembly with the M3 × 6 mm screw (h). This step is mandatory to ensure proper cable retention.

Connect the GSC356X Device

  • Connect the required cables to the rear ports of the GSC3560/GSC3565.
  • Carefully place the device into the flush-mount back box.

Attach the Front Panel

  • Align the device with the installed back box.
  • Secure the assembly using the M4 × 14 mm screws (d).
  • Tighten the security screw using the supplied hex key (f).

Verify Installation

  • Confirm that the device is firmly secured and sits flush with the wall surface.
  • Power on the device and verify normal operation.

After following the above steps, the GSC356X Door intercom device will be securely recessed into the wall, providing a clean, professional, and low-profile installation.


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