Chapter 2 – Getting Started

Optional Fused DC Power Connection

Fused DC Power Connection

Connect the direct-DC power supply cable into the DC power source on the vehicle or machine in which you are mounting the modem. Be sure the GND connection is correct.

Connect red wire to + (positive) and black wire to – (negative).

Note: For automotive application: according to the type of application, you can use permanent “+” or key- switched “+”. Connect the power supply to its source (for example, in a mobile situation, to the vehicle’s DC fuse/terminal block).

Warning: Over-voltage protection is provided on the device. To ensure complete protection, you may want to add additional filtering to the DC input.

Optional – Attach the Modem to a Flat Surface

Before you mount your modem to a permanent surface, verify signal strength, refer to Getting Started, AT Command for Verifying Signal Strength in Chapter 3.

The modem can be panel mounted with screws spaced according to the measurement shown.

Old Chassis

New Chassis

Multi-Tech Systems, Inc. MultiModem Wireless Modem with Ethernet Interface (S000375F)

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Multi-Tech Systems MTCBA-C-EN-NX manual Optional Attach the Modem to a Flat Surface, Optional Fused DC Power Connection