Connectors / Wiring

RockBLOCK 9603

The RockBLOCK 9603's header connector is a Molex PicoBlade 1.25mm pitch. The mating part is Molex part number 51021-1000.

PicoBlade 1.25mm Header Interface on RockBLOCK 9603

Pin

Label

Description

1

RXD

Iridium 9603N RX (output from RockBLOCK)

2

CTS

Iridium 9603N CTS (output from RockBLOCK)

3

RTS

Iridium 9603N RTS (input to RockBLOCK)

4

NetAv

Network Available signal

5

RI

Ring Indicator signal (active low)

6

TXD

Iridium 9603N TX (input to RockBLOCK)

7

OnOff

Sleep control (pull to ground to switch off)

8

5v In

5V power supply (450mA limit)

9

Li-Ion

3.7V power supply (450mA limit)

10

GND

Ground

The RockBLOCK does not have a charging circuit. You'll need to charge your batteries externally.

There are various FTDI USB cables, the precise model used with our products is the TTL-232R-3V3, and it's available to purchase from our shop or from various electronics outlets globally.

RockBLOCK 9602

RockBLOCK 9602 has a 0.1" header, split into 2 sections. Pins 1-6 are designed to be compatible with the FTDI TTL-232R-3V3 cable for USB hosts. If you're not using this cable, you do not need to connect these pins. The RockBLOCK board is 5V tolerant, so connecting the RockBLOCK directly to the Arduino, or similar, will not cause any issues. The logic levels of the UART connection are 3V3, but again, connecting the RockBLOCK to 5V is absolutely fine.
The RockBLOCK board is 5V tolerant, so connecting the RockBLOCK directly to the Arduino, or similar, will not cause any issues. The logic levels of the UART connection are 3V3, but again, connecting the RockBLOCK to 5V is absolutely fine.

RockBLOCK 9602 0.1" header

Pin

Label

Description

1

RTS

Iridium 9602 RTS

2

RXD

Iridium 9602 RX (output from RockBLOCK)

3

TXD

Iridium 9602 TX (input to RockBLOCK)

4

Vcc

5V Power supply (450mA limit)

5

CTS

Iridium 9602 CTS

6

GND

Ground

7

GND

Ground

8

5v In

5V Power supply (450mA limit)

9

5v Out

5V regulated output, for powering external Arduino host

10

RI

Ring Indicator

11

NetAv

Network available signal

12

OnOff

Sleep control

13

LiIon

3.7V Li-Ion power supply

14

GND

Ground

On the RockBLOCK 9602, it is possible to remove the supercapacitor. You would need to ensure that your 3.7V Li-Ion power supply could deliver a peak current of 2A for a short burst of approx 100ms.

🚧

Note

You can't remove the supercapacitors on the 9603

RockBLOCK Plus

RockBLOCK Plus is supplied with a moulded cable, which is stripped and tinned as follows:

Colour

Description

Red

9v-30v DC

Black

Ground

Blue

RS-232 TX (input to RockBLOCK+)

Yellow

RS-232 RX (output from RockBLOCK+)

Pink

Iridium 9602 on/off control

Green

Iridium Ring Alert signal

White

Iridium Network Availability signal

🚧

NOTE

The Iridium On/Off, Ring Alert and Network Availability lines (Pink, Green and White) all run at RS-232 signal levels and will sit at logic-high when not in use.

DE-9 wiring

Many customers find it helpful to connect a DE-9 connector for initial setup or debug purposes.

DE-9 Pin

Colour

Signal

2

Yellow

RX

3

Blue

TX

5

Grey

GND

Updated 10 months ago

Connectors / Wiring


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