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10.3. Configuration

10.4. Wiring Diagrams

10.3.1.  G-WEB

10.3.2.  SMS Commands

1. Complete the wiring of the unit as per Section 8 and 10.4 of this document.
2. Power up the device and verify that the device connects to the G-WEB 

  platform by referring to the LCD home screen.
3. Navigate your Internet browser to http://www.gweb.co.za  

  (or www.g-web.com.au for Australia and New Zealand) and login to your  

  existing profile or, alternatively, register a new profile.

4. On the My Devices page, select Add New G-SPEAK ULTRA Device and follow  

  the onscreen instructions to associate the device to your profile.
5. Configure the device with the desired settings using your online portal.

All features – both basic and advanced – can be easily, and remotely, 

configured via the G-WEB online interface. By simply logging into G-WEB  

using any Internet-enabled device, one can add and delete devices, specify 

text for input and output notifications and activations, modify device 

characteristics and a plethora of other features, all from the comfort of one’s 

home or office. G-WEB can be accessed by navigating to http://www.gweb.

co.za (or www.g-web.com.au for Australia and New Zealand). Note that it 

will be necessary to register if you have not previously done so.

The table below lists the optional basic SMS commands available on the 

G-SPEAK ULTRA. All basic and advanced configurations can be done via the 

G-WEB online portal.

SMS Command

Description

P.XXXX

1

.STATUS

Device Status Request to

 which the 

device will respond with the following 

information:
•  IMEI
•  Supply Voltage
•  Signal Strength
• 

Device date & time

P.XXXX.

AB.27821234567.BU1

Add New Phone Number

  

Adds a new phone number to Profile 0 and 

to Button1.

P.XXXX.

AB.27831234567.

BU1.2

Add Secondary Phone Number

  

Adds a second phone number to Profile 0 

and to Button1.

P.XXXX.DB.BU1

Delete a specific access number

  

Delete and clear all Voice Phones assigned 

to Button 1.

P.XXXX.IO

IO Status Request

  

This includes custom IO and state names 

configured on G-WEB

1. XXXX = Device Default Password

TABLE 4

10.2. Installation

10.2.1. G-SPEAK ULTRA Mounting

10.2.2. Calling Module

Gate Station Mounting instructions

10.2.1.1. Wall-mounting

Recommendations for wall mountings

Recommendations for Goose-neck mountings

10.2.1.2. DIN Rail-mounting

FIGURE 7

FIGURE 8

FIGURE 9

FIGURE 10

FIGURE 11

FIGURE 12

FIGURE 16

FIGURE 17

FIGURE 13

FIGURE 14

FIGURE 15

FIGURE 18

Reverse the procedure under Section 10.1 to re-assemble the G-SPEAK 

ULTRA.

Ensure that sealing washer is fitted and closes off the mounting hole to 

prevent water ingress.

Quick Add:

  

To instantly associate a device to your online profile, scan the 

QR code using your mobile phone and any universal QR scanner 

mobile application.

Fascia

Main Unit

The Mounting Plate is used to mount the G-SPEAK ULTRA device to a wall. 

Use four screws with wall anchors (not supplied) to secure Mounting Plate.

1. Position the Calling Module on wall adjacent to entrance gate or door.
2. Mount at a height that allows for comfortably speaking into the microphone.  

  The recommended height is 1600mm above ground level.

1. Ensure that the Calling Module does not protrude too far into the driveway.
2. The Calling Module must not be set too far back and must be easily  

  accessed from a vehicle.
3. The height should allow for comfortably speaking into the microphone.

Clip the G-SPEAK ULTRA main unit into the mounting plate after it has been 

secured to the wall; a ‘click’ will be heard if done correctly.

Should the G-SPEAK ULTRA need to be mounted onto a DIN-rail, a DIN-rail 

mounting kit is available. Enquire at Centurion Systems (Pty) Ltd for more 

information.

Secure the DIN-rail clips to the back of the mounting plate using four (4) 

screws.

Position the bottom of the DIN-rail clips onto the rail, and clip the top end into 

position(A). A ‘click’ will be heard if it has been done correctly(B).  Clip the 

G-SPEAK ULTRA main unit into the Mounting plate after it has been secured to 

the wall; another ‘click’ will be heard if done correctly.

To remove the unit from the DIN-rail, remove the main unit from the mounting 

plate as described in Section 10.1. Insert a small flat screwdriver into the 

hole(s) shown in Figure 12, and gently pry the clips from the rail.

If the cable is surface-mounted, route the cable into the unit from underneath.
Terminate the cables into the voice communication terminals by following the 

wiring diagram found under Section 10.4.
Write Call Button labels, insert into lens(es) and clip lens(es) back onto chassis.

Clip the front cover back into position and secure it with the fixing screw 

provided in the kit.

Carefully remove the front cover of the gate station.  Insert screwdriver as 

shown, unclip the Calling Module and remove it from the base.

The Mounting Panel is used to mount the calling module to a wall or  

goose-neck. Use two screws with wall anchors (not supplied) to secure the  

Mounting panel to a wall, or two screw to secure it to a goose-neck.
If the cable is being routed into the unit from a concealed conduit behind the 

base, knock out one of the cable entry holes provided in the base and feed 

through the cable. Ensure that at least 100mm of cable extends out of the wall 

or goose-neck.

Run the cable through the base, hook the Calling Module into the base as 

shown below and clip the Calling Module back into position.

Mounting 

Plate

Mounting 

Plate

Mounting 

Plate

Mounting 

Plate

Mounting 

Screws

Main Unit

Mounting 

screws  

(Not Supplied)

Wall 

anchors

DIN-rail

Clips

The fascia can be removed by inserting the tips of one’s fingers into the 

slots (as shown in Figures 6 and 7), and pulling outward and upward. The 

fascia should pop off without effort.

10.1.2. Removing the Fascia

FIGURE 6

Fascia

Slots

•  I/O Status
•  Firmware Version
•  Relay Status

‘click’

B

A

DIN-rail

Clip

Holes for  

Screwdriver

Mounting 

Plate

Cable entry  

behind the base

Cable

Front Cover

Calling 

Module

Screw

Cable

Cable entry  

below the base

Call Button 

Labels

DIN Rail

DIN-rail

Clip

DIN-rail

DIN-rail

D-Series 

Controller

Calling 

Module

G-SPEAK

ULTRA

P1
P2
P3
P4
P5
P6

Do not mount close  

to DOSS sensor 

or remote receiver.

To access the terminal blocks of the G-SPEAK ULTRA, the back plate and 

fascia need to be removed.  Follow the instructions below to do this.

Gently pull the two clips at the back backward to release the main G-SPEAK 

ULTRA unit, and lift the unit out of the mounting plate.

TABLE 3

Voltage/Firmware/Date & Time Screen

Phone Number Screen

Airtime Balance Screen

GSM Antenna Selected Screen 

Gate Status Screen 

SIM Screen 

IMEI Screen 

Gate station Voice Numbers 

•  Supply Voltage

•  Firmware Version

•  Time

•  Date

Press Enter to Refresh Airtime 

Balance from Network Provider.

External GSM Antenna Selected  

(connect own Antenna to SMA 

connector).

Press Enter to change between 

Internal and External Antennas.

Internal GSM Antenna Selected 

(default).

Device SIM Phone Number.

Gate Closed

Displays the device’s IMEI number

Displays the primary and secondary Voice 

Numbers allocated to their respective 

buttons

SIM PIN OK

Gate Opening

SIM PIN Incorrect

Gate Status Warning

Gate Open

SIM Error

10. Configurations

10.1. Removing the Mounting Plate and Fascia

10.1.1. Removing the Mounting Plate

FIGURE 5

Main Unit

Clips

Mounting Plate

Small flat 

screwdriver

Back /  

Mounting panel

Back /  

Mounting panel

Back /  

Mounting panel

Cable

Calling  

Module

Screw

Anchor

Sealing 

washer

Calling 

Module

Slot

Mr. X

Mr. Y

GND

IO4

P4

IO1

P1

P5

IO2

P2

P6

IO3

P3

VIN NEG

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