Instruction/ maintenance manual of the product RS-232 Mark Levinson
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1 No320S preamplifier RS-232 control guide.
2 Overview Overv iew The Mark Levinson No 320S pream plifier is equipped with an RS-23 2 control port. A com plete set of command in puts and stat us outputs a llow control of the No32 0S by an exter nal control s ystem (such as AMX or Crestron). T his guide contains connection d etails and t he RS-23 2 comm and list.
3 Connection RS-232 Port Location RS-232 contr ol is throu gh an RJ-11 c onnector loc ated on the bac k of the No32 0S next to the IR outp ut. This c onnector has 6 pins of w hic h only thr ee are used f or comm unication. RS-232 Port Pin Configuration.
4 RS-232 Control Cable Madriga l Audio Labs offers s everal parts to help comm unicate via RS-232 to th e No320S. T he followin g parts can be order from Madrigal A udio Labs T echnical Support.
5 D i a g r a m 2 – R J - 11 t o D S U B 9 C a b l e Pa r t s U se d f o r C a b l e D i g i ke y P a r t# R a d i os ha c k P a r t # (1 ) - 9 p in DSU B Fem ale Co nnecto r A2047-ND 2 76-1537 (2 ).
6 Comma nd list Settings: 38.4K baud, 1 s top bit, no parity Format: !< command><cr> or ! Vxx.x<cr> Th e '!' is used as a framing char acter an d can be s ent any ti me to reset the packet recep tion code.
7 GI2 Go to input 2 GI3 Go to input 3 GI4 Go to input 4 GI5 Go to input 5 GI6 Go to input 6 GI7 Go to input 7 Note: “ GI7 ” selects either input 7 or phono i nput if inst alled.
8 Status Update: Any change in the following 6 control keys will automatically send out the correspondi ng ASCII stri ng. CONTROL KEY RETURNED VALUE COMMENT Select k nob 1:IN:<1 -7>:<input al.
An important point after buying a device Mark Levinson RS-232 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Mark Levinson RS-232 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Mark Levinson RS-232 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Mark Levinson RS-232 you will learn all the available features of the product, as well as information on its operation. The information that you get Mark Levinson RS-232 will certainly help you make a decision on the purchase.
If you already are a holder of Mark Levinson RS-232, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Mark Levinson RS-232.
However, one of the most important roles played by the user manual is to help in solving problems with Mark Levinson RS-232. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Mark Levinson RS-232 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
