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Ascent Modem - Hardware Description

Ascent Modem 5G

The Ascent Modem 5G is a 5G cellular modem featuring dual SIM functionality and USB-C for data and power. It is part of the EdgeModem product line that integrates with Kognitive EdgeOS for advanced connection control and bandwidth bonding. Designed for versatile environments, it offers 5G connectivity with 4G/LTE fallback, suitable for urban and rural areas. The modem supports high bandwidth and includes 4x4 MIMO with external antennas required. It's compatible with various other operating systems, including Linux and Windows 10/11, making it a flexible option for diverse applications.

An optional 2-pin Molex MicroFit connector may be used to supply power if the USB-C host cannot provide sufficient current.

Figure 1: Ascent Modem

Physical Assembly

The Ascent modem has 2 physical configurations based on how the heatsink and feet are installed.

-001 installs the heatsink so that the USB-C connector is on the Right.

-002 installs the heatsink so that the USB-C connector is on the Left.

 The -002 variant is preferred for any rackmount installation or where the unit will be used with a Kognitive appliance, hence it is the default configurations


Heatsink and Foot Assembly – 700-00025-002 USB Left




Heatsink and Foot Assembly – 700-00025-001 USB Right


Device Use

Ascent Modem 700-00025-002, USB-C Left

Physical Ports

The following graphic shows the physical connections of the Ascent Modem. The 2-pin Molex external power connector is optional and supports +7 to +24 VDC. Applying voltage to the external power port automatically switches Ascent Modem to use this power source instead of USB-C. Removing external power may cause the device to reset and disconnect any current data connection.

Ascent Modem 700-00025-001, USB-C Right

Ascent Modem 700-00025-002, USB-C Left

The Ascent Modem supports two nano SIM, 4FF

The SIM1 / A port is the port closest to the USB Type C connector.

The SIM2 / B port is the port closest to the Power Connector and LEDs. 

The Blue LED indicates power is being supplied to the internal modem. Both USB-C power and external power will cause the LED to illuminate.

The Orange LED indicates general WAN connectivity but does not indicate an active data session. If a SIM card is not present on initial power up, the Orange LED will not be illuminated. The Orange LED will be illuminated when a SIM is inserted, and the Edge Ascent Modem is able to communicate with a cellular tower. Even with an invalid SIM subscription service plan, the Orange LED will be illuminated but data will not pass through the modem.     

Data Connection

The Edge Ascent Modem can be connected through USB-C to an EdgeOS appliance, a Linux computer, or a Windows Computer. A USB-C to USB-C or a USB-C to USB-A cable should be used, depending on the USB port available on the host device. For maximum data transfer use a USB 3.2 port; Ascent Modem is also compatible with legacy USB 2.0 ports.

The power supplied to Ascent Modem is dictated by the power capability of the host device. Many ports that support USB 3.2 can supply 896 mA of current (approx. 4.5W).


Data Connection for Ascent Modem using EdgeOS

Data Connection for Ascent Modem using Windows PC


The following specifications list shows theoretical and technical (lab) performance. Technical performance is the upper limit to real world performance. Actual performance will vary and is heavily dependent on the host device, location, antennas, and external environment. The data plan, available channels, bandwidth allocation, and congestion of the carrier network to which the Ascent Modem is attached will dictate the maximum throughput of the device. Please check with the cellular carrier for expected cellular performance.

RF Specifications and Performance




Contains FCC ID










Yes, Unpowered






200 Mbps



1600 Mbps


Peak UL NSA 5G

550 Mbps


Peak DL NSA 5G

3400 Mbps


Peak UL SA 5G

900 Mbps


Peak DL SA 5G

2400 Mbps


Max Sub6 BW

120 MHz


Carrier Agg






5G NSA Bands

n1, n2, n3, n5, n7, n8, n12, n13, n14, n18, n20, n25, n26, n28, n29, n30, n38, n40, n41, n48, n66, n70, n71, n75, n76, n77, n78, n79


5G SA Bands

n1, n2, n3, n5, n7, n8, n12, n13, n14, n18, n20, n25, n26, n28, n29, n30, n38, n40, n41, n48, n66, n70, n71, n75, n76, n77, n78, n79



B1, B2, B3, B4, B5, B7, B8, B12, B13, B14, B17, B18, B19, B20, B25, B26, B28, B29, B30, B32, B66, B71



B34, B38, B39, B40, B41, B42, B43, B48






B1, B2, B4, B5, B8, B19


GNSS Bands



RF Port 1 Tx


Primary LTE Tx, Diverse 5G Tx

RF Port 1 Rx


Primary LTE Rx, Diverse 5G Rx

RF Port 2 Tx


No transmission

RF Port 2 Rx

1452-5000 MHz

MIMO Rx for LTE and 5G midband

RF Port 3 Tx

1452-5000 MHz

Primary C-Band (5G) Tx, Diverse LTE Tx

RF Port 3 Rx

1452-5000 MHz

Primary C-Band (5G) Rx. Diverse LTE Rx

RF Port 4 Tx

617 - 960 MHz

Low Band Tx for LTE & 5G

RF Port 4 Rx

617-5000 MHz

Wide Band Rx

Data Specifications & Connectivity




Data port

USB Type-C


Data Standard

USB 3.2 / USB 3.1 / USB2.1

Auto-select USB speed based on port capability

Supported OS

Windows, Linux



2x nano SIM, 4FF

push-push SIM socket

Device Physical Specifications





113.4mm x 67.3mm x 27 mm /

4.5” x 2.75” x 1.1” -



0.45 lbs / 200g


 RF ports



 USB-C Voltage

+5 VDC


USB-C Current / Power

up to 3A, 896 mA nominal (15 W max, if supported)

Negotiated with USB-C Host; most PCs can only support 896 mA per port

External Voltage

+7 VDC to +24 VDC

Used when voltage detected on Molex Pin 1

External Power

19W peak, 15W continuous



M3x0.5 - 4 locations

Remove Rubber Feet for mounting points


Passive, optional heatsink


Operating temperature

-10C to +70C


Storage temperature

-20C to +80C



up to 95% non-condensing


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