../../../../_images/CIRAN2_Front_Panel_1280w.jpg

CIRAN2

CIRAN2 is a more modular version of CIRAN1 and is designed to host up to two separate base stations on removable sleds.

Views

../../../../_images/CIRAN2_Rear_Panel_1280w.jpg

CIRAN2 Rear Panel.

../../../../_images/CIRAN2_Internal_1280w.jpg

CIRAN2 Internal shown with a CR2S01 (LimeSDR Mini 2.0 + UP 4000 SBC) sled fitted.

Theory of operation

../../../../_images/CIRAN2_Block_Diagram.svg

12VDC and 5VDC power is available on PTFIX distribution terminals and the enclosure is fitted with two fans for cooling.

A CSAD10 board provides reference clock distribution within the chassis.

See the sled designs for base station details.

Sleds

CIRAN2 Sleds

Sled

Description

Status

CR2S01

LimeSDR Mini 2.0, UP 4000 SBC and low power duplexer

Assembled

Bill of materials

CIRAN1 BOM

Component

Description

Manufacturer

Man. Part

Distributor

Dist. Part

Enclosure

2U Rack-mount enclosure

nVent SCHROFF

20860127

RS Components

245-7831

D1-D2

Panel mount LED indicator, green

RS Pro

205-331

RS Components

205-331

R1

1K ohm 0.25W 5% axial resistor

RS Pro

707-7666

RS Components

707-7666

R2

270 ohm 0.25W 5% axial resistor

RS Pro

707-7625

RS Components

707-7625

J1

Male panel mount XLR connector

Neutrik

NC3MD-LX-M3

Mouser

568-NC3MD-LX-M3

J2-J3

Panel mount ethernet connector

RS Pro

907-5656

RS Components

907-5656

J4

BNC bulkhead connector

RS Pro

546-4083

RS Components

546-4083

J5-J8

Panel mount SMA socket to SMA socket

Amphenol

SMA7471B1-3GT50G-50

RS Components

700-9607

J9

RF Adapter SMA Socket to BNC Plug

RF Solutions

ADP-SMAF-BNCM

RS Components

125-1250

M1-2

Console IO board

LibreCellular

CONIO-B

CONIO

M3

Reference clock distribution (10 outputs)

LibreCellular

CSAD10

CSAD10

CBL1

250mm Female U.FL to Male SMA Coaxial Cable

RF Solutions

CBA-UFL-SMAM25

RS Components

125-8188

TB1

PTFIX Distribution Block, 6 way, 2.5mm, red

Phoenix Contact

3002765

RS Components

207-2850

TB2

Distribution block with 6 terminals, blue

Phoenix Contact

3002761

RS Components

207-2847

TB3

PTFIX 1.5-F Series Flange Cover

Phoenix Contact

1049503

RS Components

207-2831

FAN1-2

60x60mm 12Vdc fan

Sunon

MF60151VX-1000U-A99

RS Components

202-5421

FG1-4

60mm fan guard

RS Pro

737-3973

RS Components

737-3973

Misc.

1.5mm2 tri-rated wire in red, white black

Misc.

1.5mm2 ferrules

Resources