a complete send and receive fax & data modem XE9624F & XE9624Fs 10-03-95 description xecom's XE9624F and XE9624Fs include a 2400bps data modem, a group iii send and receive fax modem and the telephone interface in one compact component. both models include user transferable fcc part 68 registration. xecom puts the XE9624F in our dual inline package. the XE9624F is pin compatible with other xecom modems including the xe2401, xe2496, and xe9624e. the XE9624Fs comes in a single inline package. the XE9624Fs can be ordered for either vertical (XE9624Fs1) or horizontal (XE9624Fs2) mounting to optomize space utilization. xecom designed the XE9624F and XE9624Fs specifically to provide computer, notebook, and industrial systems manufacturers with a complete, highly integrated, compact solution for adding data and fax communications.
2/xecom XE9624F/XE9624Fs a 2.270 2.290 57.66 58.17 b 1.070 1.090 27.18 27.69 c 0.420 0.430 10.67 10.92 d 0.890 0.910 22.61 23.11 e 1.890 1.910 48.01 48.51 f 0.125 0.200 3.18 5.08 g 0.080 0.100 2.03 2.54 h 0.180 0.200 4.57 5.08 j 0.090 0.110 2.29 2.79 k 0.020 0.025 0.51 0.64 XE9624F mechanical specifications pins = 0.025 inch square pin all pins tin-plated inches metric(mm) pin min max min max
XE9624F/XE9624Fs xecom\3 pin descriptions name i/o description reset i hardware reset pin, schmitt input, active hi, ttl. use of an external reset is not required ar o auxiliary data/voice relay output, active hi, ttl/cmos. when high, ar drives an external auxiliary telephone set relay closed to allow the same telephone line to be used for voice communications. rxd o serial data output to the dte (i.e. external uart). a logic "high" represents a "mark" and a logic "low" represents a "space", ttl. \dtr i data terminal ready, input, active lo, ttl. the function of this pin is set by the &d command and the value in register s21. normally the modem ignores dtr. \aa o auto answer enable indicator, output, active lo, ttl/cmos. a low indicates the modem is set to automatically answer an incoming call. \cts o clear to send, output, active lo, ttl/cmos. oh o daa hookswitch relay is closed in the "off-hook" position connecting the daa to the telephone line. txd i serial data input from the dte (i.e. external uart). a logic "high" represents a "mark" and a low represents a"space", ttl. \rts i request to send, input, active lo, ttl. not used. \hs o high speed indicator, output, active lo, ttl/cmos. low when operating at 2400bps rate, high otherwise. \ri o ring indicator, output, active lo, ttl. when low indicates the modem is receiving a ring signal. tip tip connection to the phone line(rj11 pin3) from the internal daa. ring ring connection to the phone line(rj11 pin4) from the internal daa. caution: observe design rules for tip & ring trace layout
4/xecom XE9624F/XE9624Fs name i/o description gnd ground (0 volts). amp o audio output to speaker. function is determined by l & m commands and the value in register s22. this output can drive a 50kohm load. \dcd o data carrier detect, output, active lo, ttl/cmos. function is set by the &c command and the value in register s21. \dsr o data set ready, output, active lo, ttl/cmos. function is set by the &s command and the value in register s21. vcc +5 volts XE9624F pin configuration 1 40 2 39 3 38 4 37 5 36 6 35 7 34 8 33 9 32 10 31 11 30 12 29 13 28 14 27 15 26 16 25 17 24 18 23 19 22 20 21 reset ar rxd /dtr /aa /cts oh txd /rts /hs /ri tip ring +5v /dsr /dcd amp gnd XE9624Fs pin configuration vcc reset txd rxd \aa \rts \dtr \ri \hs \dcd \cts \dsr oh ar amp gnd tip ring 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 pin configurations
XE9624F/XE9624Fs xecom\5 at commands the XE9624F and XE9624Fs use the hayes "at" commands for configuration and control. extensions to the at commands support fax operation. the following section describes how to use the at command format and lists the at commands, registers and result codes used to control modem operation. modes of operation the "at" commands have three operational modes; command, fax and data modes. data mode: the XE9624F/fs enters data mode after it makes a connection with a remote modem and issues an appropriate "connect" result code. in the data mode the modem sends all data on the transmit data line to the remote modem and puts data from the remote modem onto the received data line for the host equipment. when the modem exits data mode, it issues a "no carrier" result code. command mode: the XE9624F/fs enters command mode on power-up, reset, a lost connection, or receipt of an escape code. when in command mode, the modem accepts command line instructions from the host on transmit data. more than one instruction may be placed on each command line. appropriate result codes are returned to the host on received data. the at commands allow the host to configure the modem for a specific application. fax mode: the XE9624F/fs enters fax mode after it receives the at+fclass=1 command. in fax mode commands and responses are issued at 19,200 bits per second; the character format is 8 bits no parity. the modem accepts class 1 fax commands only while in the fax mode. the a/, ato, at&t and escape commands are not valid in fax mode. command line format command lines issued to the modem follow a strict format. each command begins with the prefix at. the command line is stored in the command buffer and executed upon receipt of a carriage return. untilexecuted, the command line can be editied with the backspace key. command prefix - each command, except for the a/ command, begins with the at prefix. the "a" and "t" may be either both caps or both lower case but cannot be of different cases. the prefix identifies the speed and parity of the commands sent to the modem by the host. speed is determined by measuring the width of the incoming bits. parity is determined by comparing the parity bit of the "a" and the "t." result codes are sent at the speed and parity determined by the prefix.
6/xecom XE9624F/XE9624Fs command line - commands may be joined in a single command line up to 40 characters long. commands are executed in the sequence they appear. spaces may be inserted into the command line to improve readability. spaces do not fill space in the command buffer. a carraige return terminates the command line and causes the commands to be executed. register s3 allows the user to select a character other than a carriage return to terminate the command line. command buffer - no more than 40 characters, including the at prefix, may be loaded into the command buffer. if the command buffer overflows, the modem issues an "error" result code and commands are not executed. command line editing - the backspace can be used to edit the command line before it is executed. hiting the backspace key, or control and h simultaneously on some systems, erases the previous character in the command line. all of the characters in the command line can be erased escept for the "a" and "t." register s5 allows the user to select another character other than a backspace to edit the command line. re-execute last command - the a/ command causes the modem to reexecute the last command line. this is the only command which does not require the "at" prefix. ommitted parameters - most commands include a parameter which determines how the functions will be set. when the command parameter is omitted from the command string, it is assumed to be a 0. escape characters - a 3 character escape sequence maybe entered while in data mode to switch the modem into command mode while on line. the escape character, set by register s2, must be entered 3 times in succession within a 1 second guard time to execute the escape. the default escape sequence is "+++." result codes - the modem issues a result code after each action. result codes may be provided as full words, numeric codes or may be disabled all together. each result code ends with a carriage return when numeric resul codes are chosen. when full word result codes are chosen, a line feed and carriage return preceed abd follow each result code.
XE9624F/XE9624Fs xecom\7 at command list a - answer command - bn - select communications standard n=0 selects ccitt standards n=1 selects bell standards d - dial command - p = pulse dial t = tone dial r = connect as an answering modem w = wait for dial tone , = pause for the duration ofr s8 @ = wait for silence ! = switch hook flash ; = return to the command state en - command echo n=0 do not echo commands n=1 enable command echo* hn - switch hook control - n=0 switch hook relay closes n=1 the switch hook relay opens in - modem identification ln - speaker volumel - n=0 low speaker volume n=1 low speaker volume n=2 moderate speaker volume* n=3 high speaker volume mn - speaker activity - n=0 speaker off n=1 speaker on until carrier received* n=2 speaker remains on n=3 speaker on after dialing until carrier is detected. on - on line n=0 return on line with no retrain n=1 initiate retrain while returning on line. qn - responses n=0 send responses* n=1 no responses n=2 send responses only in originate sr? - interogate register - sr=n - set register value - vn - result codes - n=0 numeric result codes n=1 english word result codes* xn - result code set - z - reset - &cn - dcd operation n=0 dcd is forced active.* n=1 dcd indicates a valid carrier signal &dn - dtr n=0 dtr is ignored by the modem.* n=2 modem disconnects if the host rescinds dtr. n=3 the modem performs a soft reset when dtr is rescinded. &fn - defaults n=0 modem configuration to the default settings stored with at&w0.* n=1 modem configuration to the default settings stored with at&w1.
8/xecom XE9624F/XE9624Fs at command list (continued) &ln - line type n=0 modem operates on dial-up lines.* n=1 modem operates on leased lines &qn - communications format n=0 sets the modem for normal, unbuffered operation. &sn - dsr operation n=0 dsr always active.* n=1 dsr in accordance with v.25. &tn - test modes n=0 exit test mode n=1 local analog loopback n=3 initiate local digital loopback n=4 respond to remote loop request* n=5 deny remote loop request n=6 intiate a remote digital loopback n=7 remote digital loopback w self-test n=8 local analog loopback w self-test &v - view active profile - &wn - store profile - n=0 stores the current configuration in memory location 0.* n=1 stores the current configuration in memory location 1. &yn - recall profile n=0 use memory location 0.* n=1 use memory location 1. result code summary digit code word code meaning 0 ok successfully executed command line 1 connect 300 bps connection established 2 ring ring signal detected 3 no carrier carrier not detected within register s7 detect time 4 error error found in command line; returns to command line 5 connect 1200 1200 bps connection established 6 no dial tone no dial tone detected within 5 sec. after going off-hook 7 busy busy signal detected after automatically dialing a call 8 no answer five seconds of silence was not detected when using the @ command in the dial command line 10 connect 2400 connection established at 2400 bps 13 data connected in data mode after automatically answering the call. 15 fax connected in fax mode after automatically answering the call. +f4 +fcerror fax carrier errror detected. * command default values
XE9624F/XE9624Fs xecom\9 class 1 fax command list +fclass? - service class indication 0 = configured as a data modem 1 = configured for service class 1. 2 = reserved for srvice class 2. 3 = reserved for service class 3. +fclass=? - service class capability 0 = configured as a data modem 1 = configured for service class 1. 2 = reserved for srvice class 2. 3 = reserved for service class 3. +fclass=n - set service class 0 = configured as a data modem 1 = configured for service class 1. 2 = reserved for service class 2. 3 = reserved for service class 3. +fts
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