2010-03-25 23:20:59 +00:00
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Desc: APC UPS cables
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File: apc.txt
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2012-06-01 13:55:19 +00:00
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Date: 12 February 2010
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2010-03-25 23:20:59 +00:00
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Auth: Arjen de Korte <adkorte-guest@alioth.debian.org
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http://lists.alioth.debian.org/pipermail/nut-upsuser/2005-August/000118.html
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2012-06-01 13:55:19 +00:00
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Note that APC UPS serial cable part numbers follow a numbering scheme
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where the "940-" prefix identifies them as cables.
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940-1000 straight through cable
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940-0103 null modem cable
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940-0020 Basic Signaling Cable (OB and kill power)
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940-0023 Simple Signaling Cable (OB only)
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940-LL24 Smart Signaling Cable
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940-0095 PnP Cable (see Apcupsd manual for diagram)
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940-0119 Simple Signaling Cable (OB and kill power)
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940-0127 RJ45-10P10C to USB Cable
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940-0128 Simple Signaling Cable for Back-UPS CS
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"LL" represents the length:
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00 six feet
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NN NN feet
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The suffix letter represents a minor revision in physical design, or a
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change of OEM, _not_ a change of wiring or pin-out, and all cables
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differing only in this suffix letter are electrically interchangeable.
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Note though the following quote from the APC Discussion Forums: "At one
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point there were a small number of revision D cables [940-0024D] that
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had some shielding issues from the manufacturer that could maybe cause
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[...] [spontaneous] self-tests)."
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2010-03-25 23:20:59 +00:00
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+-----------------------------------------------------------------+
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| Black APC 940-0024C Smart Signalling UPS Cable Wiring Diagram |
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| This information is verified and tested to be 100% correct. |
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+-----------------------------------------------------------------+
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| DB9M(UPS) 2m Cable DB9F(Computer) |
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| --------- -------- -------------- |
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| (SHELL)<---------+----//----+----------------<(SHELL) |
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| - - |
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| CHASSIS 9<--------------//---------------------<5 SG |
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| TXD 2<--------------//---------------------<2 RXD |
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| RXD 1<--------------//---------------------<3 TXD |
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| - - +--<1 DCD |
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| +--<4 DTR |
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| NOTES: |
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| Cable type is shielded 28AWG. +--<7 RTS |
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| The DB shells are connected | |
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| to each other via the shield. +--<8 CTS |
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+-----------------------------------------------------------------+
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| Operation: The UPS communicates with the Computer via |
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| ordinary RS-232 serial protocol at 2400-8N1 with software |
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| flow control. Jumpered pins in the DB9F connector are for |
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| automatic or PNP cable identification by UPS software. |
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+-----------------------------------------------------------------+
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| Male (pins) Female (holes) |
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| DB9 RS-232 PC |
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| type connector 1 5 5 1 |
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| ---------------- _______________ _______________ |
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| Pinout numbering \ . . . . . / \ o o o o o / |
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| looking into the \ . . . . / \ o o o o / |
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| end of the cable ----------- ----------- |
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| 6 9 9 6 |
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| NOTE: Solder a wire to the metal shell for use as a FRAME-GND |
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+-----------------------------------------------------------------+
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+-----------------------------------------------------------------+
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| Gray APC 940-0020B Simple Signalling UPS Cable Wiring Diagram |
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| This information is verified and tested to be 100% correct. |
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+-----------------------------------------------------------------+
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| DB9M(UPS) 2m Cable DB9F(Computer) |
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| --------- -------- -------------- |
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| (SHELL)<-------+----//----+-------------------<(SHELL) |
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| CHASSIS 9<--+ - - |
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| COMMON 4<--+---------//------------------------<5 SG |
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| POWER-FAIL 2<------------//------------------------<8 CTS |
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| SHUTDOWN 1<------------//------------------------<4 DTR |
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| BATTERY-LOW 5<------------//--------47K--+--47K--+--<7 RTS |
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| - - | E | |
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| NOTES: |B |<--+ |
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| RTS must be held at +V SPACE. +---| |
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| TXD must be held at -V MARK. 2N3906 |---+--<1 DCD |
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| All resistors are 5% 1/8W CF. C | |
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| Cable type is shielded 28AWG. 4K7 |
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| The DB shells are connected | |
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| to each other via the shield. +--<3 TXD |
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+-----------------------------------------------------------------+
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| Operation: The UPS communicates with the Computer via |
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| the RS-232 handshaking lines only, and does not use any |
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| serial protocol. Upon power fail, the UPS forces CTS to |
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| -V MARK. When the battery is low, the UPS forces DCD to |
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| +V SPACE via the transistor. When the Computer forces a |
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| +V SPACE on DTR, the UPS will shut down and turn off. |
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| Presence of the cable can be sensed by signaling on TXD |
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| while monitoring DCD. |
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+-----------------------------------------------------------------+
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| Male (pins) Female (holes) |
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| DB9 RS-232 PC |
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| type connector 1 5 5 1 |
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| ---------------- _______________ _______________ |
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| Pinout numbering \ . . . . . / \ o o o o o / |
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| looking into the \ . . . . / \ o o o o / |
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| end of the cable ----------- ----------- |
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| 6 9 9 6 |
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| NOTE: Solder a wire to the metal shell for use as a FRAME-GND |
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+-----------------------------------------------------------------+
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+-----------------------------------------------------------------+
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| Gray APC 940-0095A Smart Signalling UPS Cable Wiring Diagram |
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| This information is verified and tested to be 100% correct. |
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+-----------------------------------------------------------------+
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| DB9M(UPS) 2m Cable DB9F(Computer) |
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| --------- -------- -------------- |
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| (SHELL)<-------+----//----+--------------------<(SHELL) |
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| CHASSIS 9<--+ - - |
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| COMMON 4<--+---------//-------------------------<5 SG |
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| BATTERY-LOW 5<------------//--------47K--+--47K--+---<4 DTR |
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| | +---<6 DSR |
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| NOTES: |B |<--+---<8 CTS |
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| DTR must be held at +V SPACE. | | +---| |
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| TXD must be held at -V MARK. 2N3906 |---+---<1 DCD |
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| All resistors are 5% 1/8W CF. | | C | |
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| Cable type is shielded 28AWG. 4K7 |
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| The DB shells are connected | | | |
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| to each other via the shield. +----4K7---+---<3 TXD |
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| | | | | | 1N4148 |
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| SHUTDOWN 1<------------//----------+----|<|-------<7 RTS |
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| POWER-FAIL 2<------------//---------------------+---<2 RXD |
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| - - +---<9 RI |
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+-----------------------------------------------------------------+
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| Operation: The UPS can communicate with the Computer |
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| solely via the RS-232 handshaking lines, or via RS-232 |
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| serial protocol at 2400-8N1 with software flow control. |
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| Upon power fail, the UPS forces RI to -V MARK. When the |
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| battery is low, the UPS forces DCD to +V SPACE via the |
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| transistor. When the Computer forces a +V SPACE on RTS, |
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| the UPS will shut down and turn off. Jumpered pins in |
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| the DB9F connector allow for automatic automatic or PNP |
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| cable identification by UPS software. |
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+-----------------------------------------------------------------+
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| Male (pins) Female (holes) |
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| DB9 RS-232 PC |
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| type connector 1 5 5 1 |
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| ---------------- _______________ _______________ |
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| Pinout numbering \ . . . . . / \ o o o o o / |
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| looking into the \ . . . . / \ o o o o / |
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| end of the cable ----------- ----------- |
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| 6 9 9 6 |
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| NOTE: Solder a wire to the metal shell for use as a FRAME-GND |
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+-----------------------------------------------------------------+
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+-----------------------------------------------------------------+
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2012-06-01 13:55:19 +00:00
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| APC 940-1000 Straight Through cable |
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2010-03-25 23:20:59 +00:00
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| Universal APC serial extension cable for use in conjunction |
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| with an APC UPS cable. This cable is verified to work. |
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+-----------------------------------------------------------------+
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| DB9M to UPS cable Shielded Cable DB9F to Computer |
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| ----------------- --- 28AWG ---- ---------------- |
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| (SHELL)<----+-------------//-------------+----<(SHELL) |
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| - - |
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| 1<------------------//------------------<1 DCD |
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| 2<------------------//------------------<2 RXD |
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| 3<------------------//------------------<3 TXD |
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| 4<------------------//------------------<4 DTR |
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| 5<------------------//------------------<5 SG |
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| 6<------------------//------------------<6 DSR |
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| 7<------------------//------------------<7 RTS |
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| 8<------------------//------------------<8 CTS |
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| 9<------------------//------------------<9 RI |
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| - - |
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| NOTE: The DB shells are connected to each other via the shield. |
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+-----------------------------------------------------------------+
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| Male (pins) Female (holes) |
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| DB9 RS-232 PC |
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| type connector 1 5 5 1 |
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| ---------------- _______________ _______________ |
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| Pinout numbering \ . . . . . / \ o o o o o / |
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| looking into the \ . . . . / \ o o o o / |
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| end of the cable ----------- ----------- |
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| 6 9 9 6 |
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| NOTE: Solder a wire to the metal shell for use as a FRAME-GND |
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+-----------------------------------------------------------------+
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