Cambridgeaudio azur 640 h owners manual 2

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Do cum ent Title : 1 The RS232 Prot ocol 1. 1 R S 232 C om m u n icat ion s The protocol is accessed via COM 1 i.e. the rear panel RS232 port. The d efault settings for CO M1 is 9600baud, no pari ty, 8 data bits, 1 stop bit wi th no ha nd shaking . 1. 2 Co m m an d F orm at Hea der Destination /So urce Co mmand Gr oup Co mmand Numb er Co mmand Data Fo oter # 1 to 6 01 t o 99 XXXX CR Bytes: 1 1 2 XX 1 CR is the car riage r eturn cha racter (13 dec imal). 1. 3 Co m m an d G ro u ps Co mman ds are split into the fo llowi ng group s: Co mmand Group Descr i ption 1 Replies from the product 2 Upda tes (events) from the product 3 Rem ote control commands t o the p roduct 4 Da tabase commands to the product 5 Database re plies from th e product 6 Set up comma nds to the product 7 Reser ved 8 Reser ved Speci ficati on - 640H RS232 C ontrol Protocol 1 1 2

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Do cum ent Title : 1. 4 Co m m an d s a n d M essag es 1. 4. 1 Gro up 1 -“ Repl ies from the 6 40H The f ollowi ng me ssag es fo rm G roup 1 an d are ac kno wl edgeme nt me ssag es from t he Co mmand Numb er Descri ption Data Ex ample 01 OK No data #1101\ r 02 Comma nd group unknown No data #1102\r 03 Comma nd numb er in group unk nown No data #1103\r 04 Comma nd data erro r No data #1104\r 05 Send so ftware version Software v ersion TBD 06 Send protocol version Protocol version TBD 1. 4. 2 Gro up 2 -“ U pdates from the 640H The f ollowing update mes sag es (ev ent s) form Gr oup 2 an d a re as ync hr onous m es sages issued by the 640H Co mmand Numb er Descri ption Data Ex ample 01 Power state changed 0 = off 1=on 2=standby #120 10\ r -“ a bout to turn off 02 Play state changed 0 = stopped 1=paused 2=playing #120 21\ r -“ t rack paused 03 Playi ng track index changed Track index within current track list #120 34\ r -“ playing track 4 of current tracks 04 Playi ng track c hanged Track t itle #1204Crazy H e Calls Me\r 05 Playing album changed Album n ame #1205Take A Look\r 06 Playing artist changed Arti st n ame #1206Natalie Cole\r Speci ficati on - 640H RS232 Control Protocol 640H in reponse to other commands. 3