[hpsdr] J16 confusion
Bill Diaz
william.diaz at comcast.net
Fri Aug 2 09:38:52 PDT 2013
J16 pin numbering confusion.
I still hear from users confused by the J16 schematic numbering scheme
on both the Hermes, Angelia board KEYED IDC connectors and the Apache
Labs ANAN-100 and ANAN-100D DB25 accessory port. Many of these users
are using breakout boards with KEYED 26 pin IDC connectors and they
cannot understand why the pinout on these boards differs from the J16
pinout found on the Hermes and Angelia schematics.
Both the assembled TAPR and Apache Labs Hermes boards were built with a
26 pin KEYED IDC connector installed on board, designated J16 on the
schematics. IDC Pin 1 is clearly indicated on the top of the installed
KEYED 26 pin IDC connector. Unfortunately, J16 KEYED IDC pin 1 actually
corresponds with J16 pin 26 on the Hermes and Angelia schematics, hence
the confusion for users who use KEYED industry standard IDC connectors
for interconnection purposes.
Some time ago Kjell explained how the pin numbering confusion occurred,
Nuff said about that. Hopefully, the following will lessen some
confusion. BTW, much of the following information is from the ANAN-10
and ANAN-100 user docs. RTFM for more details.
Hermes_User_Manual_V1.17.pdf includes the following J16 note on page 14:
IMPORTANT NOTE: The pin numbers may NOT correspond to individual cables
within an IDC
ribbon cable. In particular, ex PC IDC cables do NOT match the pin-outs
shown in the photo.
Clearly, the J16 pin numbers on the schematic WILL NOT correspond to pin
numbers of any KEYED 26 pin IDC connector a user may install in J16.
The following information details the correlation between the J16 pin
numbers on the Hermes and Angelia schematics and pin numbers found on a
standard 26 pin KEYED IDC connector.
Note: The ANAN-100 and ANAN-100D further confuse the issue by using a
DB25 female connector for the Accessory port (J16) and this changes the
pinout yet again! See listing below the Hermes/Angelia J16 pinout for
details.
Hermes/Angelia J16 pinout for 26 pin KEYED IDC ribbon cable.
(Numbers in parentheses are J16 Pinout shown on Hermes and Angelia
schematics)
1. User Digital input 3: Connected to 3.3V via 1K pullup resistor (26)
2. Open-drain PTT output (25).
3 OCREF Open-Collector reference/flyback diodes (24)
4. OC6 User open-collector output 7 (23)
5. OC5 User open-collector output 6 (22)
6. OC4 User open-collector output 5 (21)
7. OC3 User open-collector output 4 (20)
8. OC2 User open-collector output 3 (19)
9. OC1 User open-collector output 2 (18).
10. OC0 User open-collector output 1 (17)
11 User Digital input 2: Connected to 3.3V via 1K pullup resistor (16)
12 Right channel speaker balanced (ROUT+) pair with pin 13 (15)
13 Right channel speaker, balanced (ROUT-) pair with pin 12 (14).
14 User Digital input 4: connnected to 3.3V via 1K pullup resistor (13)
15 User Analogue input 2: 0-3V max (12)
16 User Analogue input 1: 0-3V max (11)
17 Analogue Ground (10)
18 User Digital input 1: Connected to 3.3V via 1K pullup resistor (9)
19 Right channel line Out (unbalanced) (8)
20 Left channel line Out (7)
21 Left channel phones output (6)
22 Right channel phones output(5)
23 Right channel line-level audio input (unbalanced) (4)
24 Left channel line-level audio input* (unbalanced) (3)
25 Analogue Ground (2)
26 PTT : connected to 3.3V via 1k pullup resistor(1) (same as Mic PTT,
J2 if JP6 used)
The PowerSDR Setup, ANAN Ctrl tab numbering scheme for the J16 Receive
and transmit pins does not represent the actual keyed IDC pin numbers.
PowerSDR
As shown IDC ribbon cable Hermes Schematic
1 10 17
2 9 18
3 8 19
4 7 20
5 6 21
6 5 22
7 4 23
3 OCRef. 24
The Apache Labs ANAN-100 and ANAN-100D Accessory Port/J16/DB25 numbering
confusion:
The Hermes/Angelia schematic detail J16 pin numbering does not
correspond to KEYED IDC ribbon cable numbering conventions. An IDC to
DB25 adapter cable further re-arranges the pin numbers available on the
rear panel Accessory Port of the ANAN-100 and ANAN-100D. J16-26 ANALOG 3
user input is lost, but it is not presently supported by PowerSDR in any
case.
Pin out and connections between 26 pin J16, Modified (shifted) 26 pin
KEYED IDC ribbon cable and DB 25.
J16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
22 23 24 25 26
IDC 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5
4 3 2 1
DB25 13 25 12 24 11 23 10 22 9 21 8 20 7 19 6 18 5 17 4 16 3
15 2 14 1
DB25 Acc Port pinout. Number in parentheses is the J16 pin number shown
on the schematic.
1. Open-drain PTT output (25)
2. OC6 User open-collector output 7 (23)
3. OC4 User open-collector output 5 (21)
4. OC2 User open-collector output 3 (19)
5. OC0 User open-collector output 1 (17)
6. Right channel speaker balanced pair (ROUT+) with pin 19 (15)
7. User Digital input 4: connected to 3.3V via 1K pullup resistor (13)
8. User Analogue input 1: 0-3V max (11)
9. User Digital input 1: Connected to 3.3V via 1K pullup resistor (9)
10. Left channel line Out (unbalanced) (7)
11. Right channel phones output(5)
12. Left channel line-level audio input* (unbalanced) (3)
13. PTT input, connected to 3.3V via 1K pullup resistor (1)
14. OCREf Open-Collector reference/flyback diodes (24)
15. OC5 User open-collector output 6 (22)
16. OC3 User open-collector output 4 (20)
17. OC1 User open-collector output 2 (18)
18. User Digital input 2: Connected to 3.3V via 1K pullup resistor (16)
19. Right channel speaker, balanced pair (ROUT-) with pin 6 (14)
20. User Analogue input 2: 0-3V max (12)
21. Analogue Ground (10)
22. Right channel line Out (unbalanced) (8)
23. Left channel phones output (6)
24. Right channel line-level audio input (unbalanced) (4)
25. Analogue Ground (2)
The PowerSDR Setup, ANAN Ctrl tab numbering scheme for the J16 Receive
and transmit pins does not represent the actual pin numbers.
PowerSDR Acc Port
As shown DB25 cable Hermes/Angelia Schematic J-16
1 5 17 OC0
2 17 18 0C1
3 4 19 OC2
4 16 20 OC3
5 3 21 OC4
6 15 22 OC5
7 2 23 OC6
14 OC REF 24 OC REF
HTH,
Bill KC9XG
--
Politics is the gentle art of getting votes from the poor and campaign funds
from the rich, by promising to protect each from the other.
~Oscar Ameringer, "the Mark Twain of American Socialism."
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