Manufacturer's description
A-157 is a trigger sequencer subsystem that generates eight trigger signals controlled by a 8x16 LED/button matrix.
The subsystem contains three modules:
- A-157-1: 8 x 16 LED/button matrix and function adressing buttons/LEDs
- A-157-2: Trigger Output module
- A-157-3: Control Inputs module
The LED/button matrix module A-157-1 is the core of the subsystem. It is used to set or reset the trigger event on each of the 16 steps of each of the 8 rows. In addition the buttons and LEDs of the matrix are used for other functions too (like setting the first and last step of each row or adressing the preset memory).
The Trigger Output module A-157-2 outputs the 8 trigger signals and has an LED display for each trigger available.
The Control Inputs module A-157-3 has manual controls and trigger inputs available for the basic control functions start, stop, reset and clock. In addition four functions inputs are available which will be used in future firmware versions to assign these inputs to special functions (e.g. shifting a row left or right by means of an external gate/trigger signal or a second set of start, stop, reset and clock for individual rows).
A-157-1
In addition to the main 8x16 matrix this modules contains also the buttons and LEDs for these functions:
- Mute button for each row, these buttons are planned also as submenu buttons for future firmware version
- Select button for each row, used to address one or more rows for subsequent functions (e.g. first step, last step, shift left, shift right ...)
- Function buttons/LEDs, the functions are divided into two levels, the second level is invoked by the SHIFT button/LED on the buttom right position
- The functions without SHIFT are printed black, the SHIFT-functions are printed in reverse
- On the front plate there are already printed some texts for future/additional features/functions. Mainly in the SHIFT-plane. As long as they are not explained in the manuals they have no function at the moment and are only placeholders for the future. Future versions of the firmware can be updated by the user via USB.
A-157-2
This is the trigger/gate output module that has 8 sockets with assigned LEDs available. The width of the output signal depends upon the width of the incoming clock signal, i.e. the width of the output signals is the same as the width of the incoming clock signal.
The level of the output signal is software controlled (i.e. not fixed to a certain value) as each outputs is equipped with a separate DAC (digital-to-analog converter).
A-157-3
This module is the master control unit for Start, Stop, Reset and Clock. In addition four function controls and inputs are available that will be used in future firmware versions to address certain functions also from external signals (e.g. shifting a row ). Each function has a manual operated button and a control input. The voltage at each input has to be +3V... +12V to trigger the function in question.
Important technical note for A-157-3: The pin header JP2 at the bottom edge of the pcb is unused so far. It is labelled "(OPTION) START/STOP/RESET BREAKOUT" and is planned for a Start/Stop/Reset/Clock breakout module. That's why the A-157-3 module is delivered without a cable connected to JP2 !
Do no connect JP2 to the A-100 bus ! This will damage the A-157 modules and warranty is void !
The three modules are internally connected via ribbon cables and can be arranged also in another layout (e.g. A-157-2/3 on the right side of the A-157-1 or in a row above or below). The modules are available only as a complete set.
- Width: 52HP total
- Depth: 45mm
- Current: +12V 80-350mA / -12V 20mA
How much is my shipping?
Shipping is automatically calculated before you submit your payment information. Simply add items to your cart and proceed to the checkout page, where you'll be offered shipping options and their prices. In the UK it's normally around £4 for order values under £150, and free above that. Shipping to mainland EU is typically between £7 and £20, depending on the shipping method and the size and weight of the order.
Do you ship to my country?
Almost certainly - the site will give you an estimate of shipping costs if you add an item to the cart and then enter your country and postcode. If you have specific requirements (such as if you prefer UPS over FedEx, for example) then let us know in advance and we'll try to work something out for you.
Shipping methods
We use a combination of Parcelforce, DPD, Royal Mail and UPS for the UK, and for international orders it's either Royal Mail, UPS, DHL or FedEx depending on where you are in the world. If you have a particular preference then try to let us know BEFORE you order so we can look into it for you. Please note that there may occasionally be additional shipping charges if you live in a remote area, depending on what surcharges are applied by the shipper. We'll get in touch to discuss this with you in such cases.
Dispatch times
For UK orders, we normally dispatch the same working day if we get the order before 15:00. If you have a really urgent situation then of course drop us an email before ordering and we'll always do our absolute best to accommodate you.
For international orders, we normally dispatch the same day if we get the order before 13:00 but again, occasionally it might be the next day before we can send it out, and sometimes FedEx or UPS may come a little earlier than scheduled which would also push an order into the next day.
Shipping times
Since April 2020 the couriers we use have suspended guarantees for shipping times, so even though we're paying them for priority services - 24-48 hours for most of the world - in practice it's often an extra day on top and sometimes it can be longer.
There is absolutely nothing we can do about this unfortunately. If you are outside the UK and it's a life-or-death situation where you absolutely MUST have that passive mult for the next day then... it may be better to find a local supplier.
Saturday shipping
If you're in the UK and you order before 15:00 on a Friday then we can send something for a Saturday delivery (NB: this applies to UK mainland addresses only). The success rate with DPD is about 95% so it's worth a punt most of the time. Please note that if you select Saturday shipping on an order placed earlier in the week, we'll wait until Friday to ship it.
Pre-orders
If a product is listed as a pre-order, it means we've ordered it from the supplier but it's not physically in stock yet. The product listing will include an estimated shipping date based on the best information we have from the supplier, but do bear in mind this is subject to change and is not a guaranteed date.
If you place an order containing a mixture of in-stock and pre-order items, we'll normally hold off on shipping anything until the pre-order item(s) have arrived, rather than splitting it into multiple shipments. If you need the in-stock items sooner, we'd recommend placing separate orders. As always, please get in touch if you have questions.
Product Overview
Manufacturer's description
A-157 is a trigger sequencer subsystem that generates eight trigger signals controlled by a 8x16 LED/button matrix.
The subsystem contains three modules:
- A-157-1: 8 x 16 LED/button matrix and function adressing buttons/LEDs
- A-157-2: Trigger Output module
- A-157-3: Control Inputs module
The LED/button matrix module A-157-1 is the core of the subsystem. It is used to set or reset the trigger event on each of the 16 steps of each of the 8 rows. In addition the buttons and LEDs of the matrix are used for other functions too (like setting the first and last step of each row or adressing the preset memory).
The Trigger Output module A-157-2 outputs the 8 trigger signals and has an LED display for each trigger available.
The Control Inputs module A-157-3 has manual controls and trigger inputs available for the basic control functions start, stop, reset and clock. In addition four functions inputs are available which will be used in future firmware versions to assign these inputs to special functions (e.g. shifting a row left or right by means of an external gate/trigger signal or a second set of start, stop, reset and clock for individual rows).
A-157-1
In addition to the main 8x16 matrix this modules contains also the buttons and LEDs for these functions:
- Mute button for each row, these buttons are planned also as submenu buttons for future firmware version
- Select button for each row, used to address one or more rows for subsequent functions (e.g. first step, last step, shift left, shift right ...)
- Function buttons/LEDs, the functions are divided into two levels, the second level is invoked by the SHIFT button/LED on the buttom right position
- The functions without SHIFT are printed black, the SHIFT-functions are printed in reverse
- On the front plate there are already printed some texts for future/additional features/functions. Mainly in the SHIFT-plane. As long as they are not explained in the manuals they have no function at the moment and are only placeholders for the future. Future versions of the firmware can be updated by the user via USB.
A-157-2
This is the trigger/gate output module that has 8 sockets with assigned LEDs available. The width of the output signal depends upon the width of the incoming clock signal, i.e. the width of the output signals is the same as the width of the incoming clock signal.
The level of the output signal is software controlled (i.e. not fixed to a certain value) as each outputs is equipped with a separate DAC (digital-to-analog converter).
A-157-3
This module is the master control unit for Start, Stop, Reset and Clock. In addition four function controls and inputs are available that will be used in future firmware versions to address certain functions also from external signals (e.g. shifting a row ). Each function has a manual operated button and a control input. The voltage at each input has to be +3V... +12V to trigger the function in question.
Important technical note for A-157-3: The pin header JP2 at the bottom edge of the pcb is unused so far. It is labelled "(OPTION) START/STOP/RESET BREAKOUT" and is planned for a Start/Stop/Reset/Clock breakout module. That's why the A-157-3 module is delivered without a cable connected to JP2 !
Do no connect JP2 to the A-100 bus ! This will damage the A-157 modules and warranty is void !
The three modules are internally connected via ribbon cables and can be arranged also in another layout (e.g. A-157-2/3 on the right side of the A-157-1 or in a row above or below). The modules are available only as a complete set.
Technical Specs
Shipping Details
How much is my shipping?
Shipping is automatically calculated before you submit your payment information. Simply add items to your cart and proceed to the checkout page, where you'll be offered shipping options and their prices. In the UK it's normally around £4 for order values under £150, and free above that. Shipping to mainland EU is typically between £7 and £20, depending on the shipping method and the size and weight of the order.
Do you ship to my country?
Almost certainly - the site will give you an estimate of shipping costs if you add an item to the cart and then enter your country and postcode. If you have specific requirements (such as if you prefer UPS over FedEx, for example) then let us know in advance and we'll try to work something out for you.
Shipping methods
We use a combination of Parcelforce, DPD, Royal Mail and UPS for the UK, and for international orders it's either Royal Mail, UPS, DHL or FedEx depending on where you are in the world. If you have a particular preference then try to let us know BEFORE you order so we can look into it for you. Please note that there may occasionally be additional shipping charges if you live in a remote area, depending on what surcharges are applied by the shipper. We'll get in touch to discuss this with you in such cases.
Dispatch times
For UK orders, we normally dispatch the same working day if we get the order before 15:00. If you have a really urgent situation then of course drop us an email before ordering and we'll always do our absolute best to accommodate you.
For international orders, we normally dispatch the same day if we get the order before 13:00 but again, occasionally it might be the next day before we can send it out, and sometimes FedEx or UPS may come a little earlier than scheduled which would also push an order into the next day.
Shipping times
Since April 2020 the couriers we use have suspended guarantees for shipping times, so even though we're paying them for priority services - 24-48 hours for most of the world - in practice it's often an extra day on top and sometimes it can be longer.
There is absolutely nothing we can do about this unfortunately. If you are outside the UK and it's a life-or-death situation where you absolutely MUST have that passive mult for the next day then... it may be better to find a local supplier.
Saturday shipping
If you're in the UK and you order before 15:00 on a Friday then we can send something for a Saturday delivery (NB: this applies to UK mainland addresses only). The success rate with DPD is about 95% so it's worth a punt most of the time. Please note that if you select Saturday shipping on an order placed earlier in the week, we'll wait until Friday to ship it.
Pre-orders
If a product is listed as a pre-order, it means we've ordered it from the supplier but it's not physically in stock yet. The product listing will include an estimated shipping date based on the best information we have from the supplier, but do bear in mind this is subject to change and is not a guaranteed date.
If you place an order containing a mixture of in-stock and pre-order items, we'll normally hold off on shipping anything until the pre-order item(s) have arrived, rather than splitting it into multiple shipments. If you need the in-stock items sooner, we'd recommend placing separate orders. As always, please get in touch if you have questions.
