C A I R O

Communications Audio Interface for Remote Operations

COMPONENTS

While every reasonable effort is made to keep the following tables and links up to date, some components may have changed their identities within these Suppliers catalogues. Please double-check.
If you discover such an alteration, please Email to G 8 C Q H

 

CAIRO Connections :        
(Code) Item Detail

RS

Farnell

Maplin

S7L

DIN-7 Socket

dual-lug, chassis

478-302

147-702

HH37S

S7N

single-nut, circular

478-661

148-503

 
S7F

in-line, free

476-261

152-051

 
P3

DIN-3 Plug

diecast

477-854

147-689

 
P5

DIN-5 Plug

diecast (45deg. pins)

477-876

147-691

 
P7

DIN-7 Plug

diecast

478-037

147-694

 
LC

Line Cable

4-core, individually screened

367-577

140-467

PA18U

OR

"Orange Reel"

blank cable drum

 

147-710

 
Sturdy Line ('liquorice') 4-way, ribbon cable : Altai F4CS    

 

 

Item   Description

RS

Farnell

Maplin

INTERFACING (Rig-Adaptors) :      
RAM Rig Adaptor BNC In-Line Module 456-201 GE80073  
REG electret-bias 78L05, 5V regulator 648-488 LM78L05 QL26D
RSM Rig Speaker Mute miniature SPDT switch 316-973 148-705 FH00A
           
DISTRIBUTION (Single-, Dual-Operator Outlet Boxes) :    
           
VCP Volume Control cermet, linear,100 ohms, 2 W 162-776 MCU100R YP03D
VCK Vol. Con. Knob 0.25" shaft 499-977
(498-839)
143-281 YR64U
LMS Single-ear Mute miniature SPDT switch 316-973 148-705 FH00A
SOB Single Op. Box diecast box; 89 x 35 x 30 225-164 27969PSL  
DOB Dual Op. Box diecast box; 114 x 90 x 55 225-192 26908PSL M5007
OSS Operator Selector DPDT, standard (1A) switch 316-591 8373K7 FH39N
           
LOOSE-TAILS        
A5S Audio-5 Line-Socket       FK25C
A5P Audio-5 Chassis-Plug       FM53H
           
Dual-Rig Selection Box:        
  Box ABS box = 85 x 55 x 40 502-348    
  Rx switch DPDT, standard (1A) switch 316-591 8373K7 FH39N
  Tx switch 3PDT, miniature, 'prof' (6A) 317-190 151-172  

 

Item   Description

RS

Farnell

Maplin

CAIRO-8 Connections:        
S8N DIN-8 Socket single-nut, circular 476-299 148-504  
P8 DIN-8 Plug diecast 473-256 148-497  
C8L CAIRO-8 Line 8-cores , overall screen 367-460 140-482 XS19V
           
C-8 INTERFACING (Rig-Conversions):      
SIL Relay Squelch/PTT form-A reed (12V SIL) 345-561 176-578 (JH13P)
ALA Audio-Line Amp LM380 306-819 LM380N14 QH40T
LAP Level Adjust Pot. 1M ohm, PCB-mount, multi-turn 160-152 3296W1M UH28F
           
C-8 LOOSE-TAILS :      
A8S Audio-8 Line-Socket . . FK30H
A8P Audio-8 Chassis-Plug . . FK29G

 

Item   Description

RS

Farnell

Maplin

CAIRO Compatibility        
ACCESSORIES:        
EC Electret Capsule 2-terminal FET output . . FS43W
EG Electret Gooseneck Magnetic Retrieving Tool 542-144    
  Gooseneck cable Screened cable, lapped, twin oval 367-224 140-461 XR20W
TTT "Trample-To-Talk" Footswitch, medium-duty 321-060 (6289CC)  
  Binaural Headset integral boom electret mike . . YP77J

 

Item   Description

RS

Farnell

Maplin

Augmenting Modules        
TTUs (TNCs)        
XFMR   Transformer 600R, 1:1 208-822 149-152  
OPTO Opto-Isolator Bilateral FET ?? 650-790 H11F3  
Detector/Buffer LM324 307-884 LM324N UF26D
Logic (CMOS) 4023 636-924 (CD)4023 QX12N
  Op-Amp ref. Diode 1N914 (1N4148) 271-606 1N914 QL71N
OVZ Overvoltage Zener 1N5333 series - 15V 283-205 1N5352  
LED Set-up LED e.g. 'standard' 0.2" (5mm) Red 586-475 178-309 WL27E
Noise Gate Potentiometer 10K, PCB-mount, multi-turn 160-095 3296W10K UH25C
Choke 22mH 228-359 148-154  

 

Updated :
00/03/29

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G 8 C Q H