7501T8 - Revision history

JL at 19:28, 19 February 2019

2019-02-19T19:28:48Z

← Older revision		Revision as of 14:28, 19 February 2019
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	#REDIRECT [[7501Tx relay racks]]		#REDIRECT [[7501Tx relay racks]]
			[[Category:Products]]

JL: cvt to redirect

2018-07-13T17:16:06Z

cvt to redirect

← Older revision		Revision as of 12:16, 13 July 2018
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	~~Models 7501T8, 7501T16 and 7501T24 are solid-state~~ relay ~~(SSR)~~ racks ~~that accommodate (up to 8, 16 and 24, respectively) G4 type SSR modules. Except where specified otherwise, this document applies to all three relay rack models.~~		#REDIRECT [[7501Tx relay racks]]

	~~==Pinout==~~

	~~{\| class="wikitable" style="text-align:center;float:right;margin-left:25px"~~
	~~\|+ Pin function table~~
	~~! colspan="6" \| Relay Rack~~
	~~! colspan="3" \| GPIO~~
	\|-
	~~! rowspan="2" colspan="3" \| Model<br>7501Txx~~
	~~! rowspan="2" \| SSR<br>Socket~~
	~~! rowspan="2" \| Header<br>Pin~~
	~~! rowspan="2" \| TB Pins<br>(+/-)~~
	~~! colspan="2" \| Model 826~~
	~~! rowspan="2" \| Model<br>2410~~
	\|-
	~~! J3 !! J2~~
	\|-
	~~\| rowspan="8" style="padding-bottom:0" \|  8 ~~
	~~\| rowspan="16" style="padding-bottom:30%" \| 16~~
	~~\| rowspan="24" style="padding-bottom:30%" \| 24~~
	~~\| 0 \|\| 47 \|\| 1 / 2 \|\| 0 \|\| 24 \|\| 17~~
	\|-
	~~\| 1 \|\| 45 \|\| 3 / 4 \|\| 1 \|\| 25 \|\| 19~~
	\|-
	~~\| 2 \|\| 43 \|\| 5 / 6 \|\| 2 \|\| 26 \|\| 21~~
	\|-
	~~\| 3 \|\| 41 \|\| 7 / 8 \|\| 3 \|\| 27 \|\| 23~~
	\|-
	~~\| 4 \|\| 39 \|\| 9 / 10 \|\| 4 \|\| 28 \|\| 9~~
	\|-
	~~\| 5 \|\| 37 \|\| 11 / 12 \|\| 5 \|\| 29 \|\| 11~~
	\|-
	~~\| 6 \|\| 35 \|\| 13 / 14 \|\| 6 \|\| 30 \|\| 13~~
	\|-
	~~\| 7 \|\| 33 \|\| 15 / 16 \|\| 7 \|\| 31 \|\| 15~~
	\|-
	~~\| rowspan="16" style="background-color:#ddd" \|~~
	~~\| 8 \|\| 31 \|\| 17 / 18 \|\| 8 \|\| 32 \|\| 1~~
	\|-
	~~\| 9 \|\| 29 \|\| 19 / 20 \|\| 9 \|\| 33 \|\| 3~~
	\|-
	~~\| 10 \|\| 27 \|\| 21 / 22 \|\| 10 \|\| 34 \|\| 5~~
	\|-
	~~\| 11 \|\| 25 \|\| 23 / 24 \|\| 11 \|\| 35 \|\| 7~~
	\|-
	~~\| 12 \|\| 23 \|\| 25 / 26 \|\| 12 \|\| 36 \|\| 41~~
	\|-
	~~\| 13 \|\| 21 \|\| 27 / 28 \|\| 13 \|\| 37 \|\| 43~~
	\|-
	~~\| 14 \|\| 19 \|\| 29 / 30 \|\| 14 \|\| 38 \|\| 45~~
	\|-
	~~\| 15 \|\| 17 \|\| 31 / 32 \|\| 15 \|\| 39 \|\| 47~~
	\|-
	~~\| rowspan="8" style="background-color:#ddd" \|~~
	~~\| 16 \|\| 15 \|\| 33 / 34 \|\| 16 \|\| 40 \|\| 33~~
	\|-
	~~\| 17 \|\| 13 \|\| 35 / 36 \|\| 17 \|\| 41 \|\| 35~~
	\|-
	~~\| 18 \|\| 11 \|\| 37 / 38 \|\| 18 \|\| 42 \|\| 37~~
	\|-
	~~\| 11 \|\| 9 \|\| 39 / 40 \|\| 19 \|\| 43 \|\| 39~~
	\|-
	~~\| 19 \|\| 7 \|\| 41 / 42 \|\| 20 \|\| 44 \|\| 25~~
	\|-
	~~\| 20 \|\| 5 \|\| 43 / 44 \|\| 21 \|\| 45 \|\| 27~~
	\|-
	~~\| 21 \|\| 3 \|\| 45 / 46 \|\| 22 \|\| 46 \|\| 29~~
	\|-
	~~\| 22 \|\| 1 \|\| 47 / 48 \|\| 23 \|\| 47 \|\| 31~~
	\|-
	\|}

	~~The relay rack has a 50-pin header which is compatible with several Sensoray GPIO products, including models 826 and 2410.~~

	~~All even-number header pins are shorted together and to the GND terminal. The odd-number pins are assigned as shown in the pin function table.~~

	~~==Rack power==~~

	You must supply 5 VDC operating power to the relay rack. Typically this is done by connecting an external 5 VDC power supply to the relay rack. The external power supply must share a common ground with the computer power supply.

	The relay rack provides two screw terminals for this purpose, which are labeled +5V and GND. Alternatively, in some cases you may be able to obtain relay rack power directly from the GPIO board, which will allow you to omit the external power supply. Refer to the sections below for details.

	~~==Using with Sensoray 826==~~

	The relay rack requires 5 VDC operating power, which typically is supplied by an external power supply connected to the +5V and GND terminals. Alternatively, you may modify the relay rack as follows: On the bottom of the relay rack, attach a wire (via solder) from the +5V terminal to J1 pin 49. This will use +5 V from the 826 board to power the relay rack.

	The relay rack may be connected to header J2 or J3 on the 826 board. The Pin function table (see above) shows the GPIO associated with each SSR. For example, if the relay rack is connected to J2 then SSR2 will be associated with GPIO26.

	An output SSR is controlled by writing to the associated GPIO, whereas an input SSR is monitored by reading the GPIO. Model 826 has active-low GPIOs and the relay rack is designed for active-low signaling. Consequently, you must write '1' to turn on an output SSR and write '0' to turn it off. Similarly, when reading an input SSR, '1' indicates the relay is on and '0' indicates off.

JL: /* Pinout */

2018-07-13T17:08:54Z

Pinout

← Older revision		Revision as of 12:08, 13 July 2018
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	All even-number header pins are shorted together and to the GND terminal. The odd-number pins are assigned as shown in the pin function table.		All even-number header pins are shorted together and to the GND terminal. The odd-number pins are assigned as shown in the pin function table.
	~~{{clear}}~~

	==Rack power==		==Rack power==

JL: /* Relay rack power */

2018-07-13T17:08:22Z

Relay rack power

← Older revision		Revision as of 12:08, 13 July 2018
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	{{clear}}		{{clear}}

	==~~Relay rack~~ power==		==Rack power==

	You must supply 5 VDC operating power to the relay rack. Typically this is done by connecting an external 5 VDC power supply to the relay rack. The external power supply must share a common ground with the computer power supply.		You must supply 5 VDC operating power to the relay rack. Typically this is done by connecting an external 5 VDC power supply to the relay rack. The external power supply must share a common ground with the computer power supply.

JL: /* Relay rack power */

2018-07-13T17:06:04Z

Relay rack power

← Older revision		Revision as of 12:06, 13 July 2018
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	==Relay rack power==		==Relay rack power==

	You must supply 5 VDC operating power to the relay rack. Typically this is done by connecting an external 5 VDC power supply to the relay rack~~. The relay rack provides two screw terminals for this purpose, which are labeled +5V and GND~~. The external power supply must share a common ground with the computer power supply.		You must supply 5 VDC operating power to the relay rack. Typically this is done by connecting an external 5 VDC power supply to the relay rack. The external power supply must share a common ground with the computer power supply.

	In some cases you may be able to obtain relay rack power directly from the GPIO board, which will allow you to omit the external power supply. Refer to the sections below for details.		The relay rack provides two screw terminals for this purpose, which are labeled +5V and GND. Alternatively, in some cases you may be able to obtain relay rack power directly from the GPIO board, which will allow you to omit the external power supply. Refer to the sections below for details.

	==Using with Sensoray 826==		==Using with Sensoray 826==

JL: /* Relay rack power */

2018-07-13T17:04:47Z

Relay rack power

← Older revision		Revision as of 12:04, 13 July 2018
Line 79:		Line 79:
	==Relay rack power==		==Relay rack power==

	You must supply 5 VDC power to the relay rack. Typically this is done by connecting an external 5 VDC power ~~source~~ to the relay rack's +5V and GND ~~terminals~~. The ~~5 VDC~~ power ~~source~~ must share a common ground with the computer power supply.		You must supply 5 VDC operating power to the relay rack. Typically this is done by connecting an external 5 VDC power supply to the relay rack. The relay rack provides two screw terminals for this purpose, which are labeled +5V and GND. The external power supply must share a common ground with the computer power supply.

	In some cases you may be able to obtain relay rack power from the GPIO board, which will allow you to omit the external power supply. Refer to the sections below for details.		In some cases you may be able to obtain relay rack power directly from the GPIO board, which will allow you to omit the external power supply. Refer to the sections below for details.

	==Using with Sensoray 826==		==Using with Sensoray 826==

JL: /* 5 VDC power */

2018-07-13T16:51:14Z

5 VDC power

← Older revision		Revision as of 11:51, 13 July 2018
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	{{clear}}		{{clear}}

	==~~=5 VDC~~ power===		==Relay rack power==

	You must supply 5 VDC power to the relay rack. Typically this is done by connecting an external 5 VDC power source to the relay rack's +5V and GND terminals. The 5 VDC power source must share a common ground with the computer power supply.		You must supply 5 VDC power to the relay rack. Typically this is done by connecting an external 5 VDC power source to the relay rack's +5V and GND terminals. The 5 VDC power source must share a common ground with the computer power supply.

JL: /* Pinout */

2018-07-13T16:50:50Z

Pinout

← Older revision		Revision as of 11:50, 13 July 2018
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	==Pinout==		==Pinout==

	{\| class="wikitable" style="text-align:center;float:~~left~~;margin-~~right~~:~~20px~~"		{\| class="wikitable" style="text-align:center;float:right;margin-left:25px"
	\|+ Pin function table		\|+ Pin function table
	! colspan="6" \| Relay Rack		! colspan="6" \| Relay Rack
Line 81:		Line 81:
	You must supply 5 VDC power to the relay rack. Typically this is done by connecting an external 5 VDC power source to the relay rack's +5V and GND terminals. The 5 VDC power source must share a common ground with the computer power supply.		You must supply 5 VDC power to the relay rack. Typically this is done by connecting an external 5 VDC power source to the relay rack's +5V and GND terminals. The 5 VDC power source must share a common ground with the computer power supply.

	In some cases you may be able to obtain relay rack power from the GPIO board, which will allow you to omit the external power supply. Refer to the sections below for details.		In some cases you may be able to obtain relay rack power from the GPIO board, which will allow you to omit the external power supply. Refer to the sections below for details.

	==Using with Sensoray 826==		==Using with Sensoray 826==

JL at 16:50, 13 July 2018

2018-07-13T16:50:19Z

← Older revision		Revision as of 11:50, 13 July 2018
Line 75:		Line 75:

	All even-number header pins are shorted together and to the GND terminal. The odd-number pins are assigned as shown in the pin function table.		All even-number header pins are shorted together and to the GND terminal. The odd-number pins are assigned as shown in the pin function table.
			{{clear}}

	===5 VDC power===		===5 VDC power===
Line 81:		Line 82:

	In some cases you may be able to obtain relay rack power from the GPIO board, which will allow you to omit the external power supply. Refer to the sections below for details.		In some cases you may be able to obtain relay rack power from the GPIO board, which will allow you to omit the external power supply. Refer to the sections below for details.
	~~{{clear}}~~

	==Using with Sensoray 826==		==Using with Sensoray 826==

	~~You must supply~~ 5 VDC power ~~to the relay rack. This can be done in either of the following ways:~~		The relay rack requires 5 VDC operating power, which typically is supplied by an external power supply connected to the +5V and GND terminals. Alternatively, you may modify the relay rack as follows: On the bottom of the relay rack, attach a wire (via solder) from the +5V terminal to J1 pin 49. This will use +5 V from the 826 board to power the relay rack.
	* Connect an external ~~5 VDC~~ power ~~source~~ to the ~~relay rack's~~ +5V and GND terminals. ~~The 5 VDC power source must share a common ground with~~ the ~~computer power supply.~~
	* On the bottom of the relay rack, attach a wire (via solder) from the +5V terminal to J1 pin 49. This will use +5 V from the 826 board to power the relay rack.

	The relay rack ~~can~~ be connected to header J2 or J3 on the 826 board. The Pin function table (see above) shows the GPIO associated with each SSR~~, which depends on whether the relay rack is connected to J2 or J3~~. For example, if the relay rack is connected to J2 then SSR2 will be associated with GPIO26.		The relay rack may be connected to header J2 or J3 on the 826 board. The Pin function table (see above) shows the GPIO associated with each SSR. For example, if the relay rack is connected to J2 then SSR2 will be associated with GPIO26.

	An output SSR is controlled by writing to the associated GPIO, whereas an input SSR is monitored by reading the GPIO. Model 826 has active-low GPIOs and the relay rack is designed for active-low signaling. Consequently, you must write '1' to turn on an output SSR and write '0' to turn it off. Similarly, when reading an input SSR, '1' indicates the relay is on and '0' indicates off.		An output SSR is controlled by writing to the associated GPIO, whereas an input SSR is monitored by reading the GPIO. Model 826 has active-low GPIOs and the relay rack is designed for active-low signaling. Consequently, you must write '1' to turn on an output SSR and write '0' to turn it off. Similarly, when reading an input SSR, '1' indicates the relay is on and '0' indicates off.

JL at 16:44, 13 July 2018

2018-07-13T16:44:54Z

← Older revision		Revision as of 11:44, 13 July 2018
Line 75:		Line 75:

	All even-number header pins are shorted together and to the GND terminal. The odd-number pins are assigned as shown in the pin function table.		All even-number header pins are shorted together and to the GND terminal. The odd-number pins are assigned as shown in the pin function table.

			===5 VDC power===

			You must supply 5 VDC power to the relay rack. Typically this is done by connecting an external 5 VDC power source to the relay rack's +5V and GND terminals. The 5 VDC power source must share a common ground with the computer power supply.

			In some cases you may be able to obtain relay rack power from the GPIO board, which will allow you to omit the external power supply. Refer to the sections below for details.
	{{clear}}		{{clear}}