NL-S2CK Datasheet by NimbeLink, LLC

‘ NimbeLinkG LSmart. Simple. Cellular. ﬂ NImbaLtnk Corp. 2018 All llghls resumed. NlmbeLInk Com amt/Ides lhls oocumentauon In support at us products In! the rntemal use at Its wrranl and mospocllve customers The pubttcaucn or tttrs document aces not create any other ngnt or license tn any pany In use any content ccntarned In or retenec to In lhls oocurnerttana any moamcattort or reotstnbuuon otthrs document ts not permuted Wmle enons are maoe to ensure acouvacy. typograpnrcal and other errors may exls| In tms document NtmbeLInk reserves the ngm to ntoolty or umonn‘nue rts products and to mcorty ttrrs amt any ettrer product documentation at any ume All NImbeLInk products are soto sublecl to us publlshed Terms and Conditions. sublecl to any separate terms agreed wlm ns customers No watvanly or any type ts extended by publtcaﬁon of this oocumenlamn, lncluding, but nol runner to. rmotreo wannntres ot nrercrrcntaortity, ﬁtness tor a panictﬂar Dumose and nomntnneement NrmbeL-nk ts a regrstered trademark. and Skywire is a regtsteree trademark, e1 Nimbeunk Corp. All trademarks. semce marks and similar desrgnattons referenced m the document are ttte property cl ttrerr resoecove owners

S2C Link Accessory Kit

Datasheet

Part Number: NL-S2CK

NimbeLink Corp

Updated: May 2018

 
Table of Contents 
 
Introduction 3 
Overview 3 
Technical Specifications 3 
Block Diagram 3 
Electrical Specifications 4 
External Interfaces 5 
USB Connector 5 
RS232 Connector 5 
Power Connector 6 
Power Considerations 6 
SIM Socket 6 
RF Connectors 6 
Indicator LEDs 8 
Recommended Antennas 8 
 
PN 30230 rev 3 NimbeLink Corp. All Rights Reserved 2

Power Pl‘lnal SMA Convener y Dummy SMA Level D39 Translator 5m Slol

1. Introduction

1.1 Overview

NimbeLink's S2C (serial-to-cellular) Link Accessory Kit consists of simple, user

assembled device allowing easy access to the serial ports for both the USB and

RS232 interfaces on the Skywire® modem. The Kit is compatible with any of the

wide range of cellular technologies and carrier certified modems in the Skywire

cellular modem family.

The S2C Link Accessory kit is tough, compact, and is able to handle extremes of

temperature. The kit offers a range of powering and mounting options and draw

relatively little power, which suits them for remote applications like kiosks, digital

signage, control panels, security panels, and surveillance equipment. Their

ruggedness, simplicity, and low cost make them ideal for large volume, low-touch

applications.

2. Technical Specifications

2.1 Block Diagram

VBUS 5.5V Input voltage on USB VBUS signal Rate USB Data 480 Mbit/s USB Data Rate -40C +85C Operating Temperature D59 Inputs 0‘8V 2.4V R5232 Serial inputs Outputs

2.2 Electrical Specifications

2.2.1 Absolute Maximum Ratings

Parameter

Min

Max

Description

Vin

4.5V

32V

Input voltage on barrel jack center pin

VBUS

5.5V

Input voltage on USB VBUS signal

DB9 Inputs

-25V

25V

RS232 Serial inputs

DB9

Outputs

-13.2V

13.2V

RS232 Serial outputs

DB9 Date

Rate

250kbps

RS232 Serial port Baud Rate

USB Data

480 Mbit/s

USB Data Rate

Operating

Temperatur

e

-40C

+85C

Operating Temperature

2.2.2 Recommended Ratings

Parameter

Min

Typical

Max

Description

Vin

5V

30V

Input voltage on barrel jack center

VBUS

5V

Input voltage on USB VBUS signal

DB9 Inputs

0.8V

2.4V

RS232 Serial inputs

DB9

Outputs

-5.4V

5.4V

RS232 Serial outputs

Date Rate

115.2K

bps

RS232 Serial port Baud Rate

Transmit RTS Input Ready-To-Send CTS Output Clea r-To-Send

3. External Interfaces

3.1 USB Connector

The USB connector is a

USB Mini-AB style.

3.2 RS232 Connector

The RS232 connector is a DB9 female interface.

Number

Name

Direction

Description

1

DCD

Output

Internally tied to V+ through 1K resistor

2

RXD

Output

Receive

3

TXD

Input

Transmit

4

DTR

None

No Internal Connection

5

GND

Input

Ground

6

DSR

Output

Internally tied to V+ through 1K resistor

7

RTS

Input

Ready-To-Send

8

CTS

Output

Clear-To-Send

9

RI

Output

Internally tied to V+ through 1K resistor

5" _ Primary Secondary Antenna Antenna

3.3 Power Connector

The power connector is a 2.1mm center pin positive barrel jack receptacle.

Parameter

Description

Center Pin

Positive DC voltage input

Shell

Ground

Inside Diameter

2.1mm

Outside

Diameter

5.5mm

3.3.1 Power Considerations

NimbeLink recommends having control over the power jack in order to reset the

Skywire if necessary

3.4 SIM Socket

The SIM card socket accepts Micro-SIM size 3FF SIM cards.

The SIM card socket is present on all LTE and GSM Skywire modems. The SIM

card socket is not present on the 2G 1XRTT nor 3G EVDO CDMA Skywire

modems.

3.5 RF Connectors

The S2C Link provides a primary and diversity antenna connection points. The

connectors are both standard SMA connectors, center pin: female. The primary

antenna connection must be used in all implementations. The diversity antenna

connection is not connected when used with a 2G 1xRTT, 2G GSM, 3G HSPA

Skywire.

m 3*" , ax. @633. %@ POWER LED STATUS LED TG‘30.8113 MAG-212-12»5M A-M

3.6 Indicator LEDs

The S2C Link Accessory Kit has two external LED indicators. The POWER LED,

on the left of the enclosure, is illuminated when power is applied to the device.

The STATUS LED, on the right side of the enclosure, is a flexible use LED that is

often used as a status indicator by the Skywire modem to indicate the current

operating mode of the Skywire. It is driven by pin 13 from the Skywire and can

also be manually configured by sending AT commands to the modem. Please

refer to the user manual and AT command manual for the specific modem being

used.

4. Recommended Antennas

The following Antennas are recommended for use with the S2C Link Accessory

Kit.

Manufacturer

Part Number

Antenna Type

Taoglas

TG.30.8113

Dipole, Wide Band Cellular Antenna

PowerTech

Antennas

MAG-212-12-SM

A-M

Omni directional, high gain cellular

antenna

NL-S2CK Datasheet by NimbeLink, LLC

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