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

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.

RockBLOCK 9602 0.1" header

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

Brown

9v-30v DC

Grey

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

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 about a year ago

Connectors / Wiring


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