JAVAD UHFSSRx OEM Radios User Manual

: June 6, 2024
: JAVAD

Table of Contents

JAVAD UHFSSRx OEM Radios
UHFSSRx
Support Inquires
Dimensions
16-Lead Header Connector Pinout
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

JAVAD UHFSSRx OEM Radios

UHFSSRx

For operation manuals and other technical documents, please visit our website and download the latest firmware.
Here are the link to the UHFSSRx firmware, documentation, and utilities: http://javad.com/jgnss/products/radios/oem-radios.html

Support Inquires

In order to address customer support inquires in a timely and effective manner; JAVAD GNSS has created a powerful online question utility. To take advantage of this utility, please log into your JAVAD GNSS account and select QUESTIONS from the drop down menu.

JAVAD-UHFSSRx-OEM-Radios-1

Dimensions

JAVAD-UHFSSRx-OEM-Radios-2

PIN #| Signal Designator| Signal name| Description| I/O| Comments
---|---|---|---|---|---
1| GND| GND| –| Ground| Signal and Chassis Ground
2| DSP UART 1| TXD| TTL Input| Transmitted Data| Serial Data Input
3| DSP UART 2| RXD| TTL Output| Received Data| Output for received serial data

4

| ****

DPORT5

| ****

DTR or DP/ MP

| ****

TTL Input

| ****

Data Terminal Ready

| Control line can be used as a backup method for entering Command mode: (0V) – Maintenance Mode; (3.3V) – Data Mode

An internal 100K pull-up enables Data Mode if this signal is left unconnected. Mainte-

nance Mode is also accessible by transmitting an escape sequence.

5

| ****

DPORT1

| ****

CTS

| ****

TTL Output

| ****

Clear to Send

| Used to control transmit flow from the user to the radio: (0V) – Transmit buffer not full, continue transmitting (3.3V) – Transmit buffer full, stop transmitting

6

| ****

TTLI1

| ****

SLEEP

| ****

TTL Input

| ****

Sleeps/wakes radio Receive only

| In sleep mode, all radio functions are disabled consuming less than 50µA. An internal 10K pull-down wakes up the radio if this signal is left unconnected. At wake up, any user programmed configuration settings are refreshed from flash memory, clearing any temporary settings that may have been set:

(3.3V) – Sleep Radio; (0V) – Wake Radio

As an option could be used as TTL Input Line 1.

7

| ****

DPORT3

| ****

MDM_GRN

| ****

TTL Output

| ****

Data Carrier Detect

| Used by remotes to indicate that the remote has successfully acquired the signal from base station:

(0V) – Carrier detected (synchronized)

(3.3V) – No carrier detected (not synchronized)

8

| ****

DPORT4

| ****

RTS

| ****

TTL Input

| ****

Request to Send

| Gates the flow of receive data from the radio to the user on or off. An internal 10K pull- down enables data receive if this signal is left unconnected. In normal operation, this signal should be asserted:

(0V) – Receive data (RxD) enabled

(3.3V) – Receive data (RxD) disabled

9

| ****

DPORT2

| ****

DSR

| ****

TTL Output

| ****

Data Set Ready

| Used to control transmit flow from the user to the radio: (0V) – Receive buffer has data to transfer;