User Manual
Table Of Contents
- Contact Us
- Copyrights
- Document History
- Contents
- List of Figures
- List of Tables
- About VML750 LTE Vehicular Subscriber Modem (VSM) Installation Guide
- VML750 Description
- VML750 Installation
- VML750 Troubleshooting Causes and Indicators
- VML750 Operation
- VLM750 Specifications
- LTE LMR Antennas Mounting Recommendations
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Chapter 2: VML750 Installation
VML750 Cable Routing and Connection
This section describes installing, routing, and connecting the VML750 LTE Vehicular Subscriber
Modem (VSM) cables.
Installing the DC Power and Ignition Cable
Perform this procedure to route and connect the DC Power and Ignition cable.
CAUTION: Insert the fuse into the fuse holder after installation completion and after carefully
inspecting all connections. The VML750 LTE Vehicular Subscriber Modem (VSM) supports
12V (13.8 V ±20%) or 24V (27.6 V ±20% DC) vehicle batteries.
Connecting to higher power source (for example, 48V battery) may damage VML750.
NOTICE: The unit may only be used in a negative ground system. The FKN8663A
DC Power and Ignition Cable is equipped with a 5A fuse (slow-blow). Verify that the
electrical system of the vehicle can support current values greater than 5A.
Procedure:
1
Remove the fuse from the fuse holder.
2
Route the DC Power and Ignition cable leads through the firewall and into the engine
compartment. Use an existing opening or, if necessary, drill a 2 cm (26/32 inch) diameter hole
through the firewall. Insert a grommet into the hole to prevent damage to the DC Power and
Ignition cable.
Figure 11 DC Power and Ignition Cable Routing Into Engine Compartment