Mitel SX-200 DIGITAL Pabx Engineering Information Manual
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Engineering Information TX PADS CIRC TIP CONNECTING SWITCHING NETWORK Rx PADS 8230ROEC Figure 12-4 Analog Pad Arrangements - Configuration A Page 12-g
Engineering Information 2 !=t -----__--_- SZZSROEO Figure 12-5 Analog Pad Arrangements - Configuration B Page 12-10
Engineering Information VARIABLE CIRCU R TO T/R TING 9259ROEI Figure 12-6 Local Switching Analog Pad Arrangements Page 12-11
Engineering Information TABLE 12-2 SX-200@ DIGITAL PABX LOCAL SWiTCHlNG LOSS PLAN ATO * * The AT0 trunk cannot be locally switched. The AT0 trunk can be implemented with an analog CO trunk interface, but it does not have the 2 dB pad required to meet part of the loss plan for local switching. 412.96 All analog interfaces may be represented by the block diagram Figure 12-6 when they are locally switched. Confereneing Loss Plan 12.17 Any SX-2QO@ DIGITAL PABX will have at least one 18 port conference circuit (Digital Signal Processor). The conferencing circuit, on a frame-by-frame basis, compares the level of all conferees and sends the loudest signal to all other parties in the conference. The party which is the loudest receives audio from the second loudest party. The conference loss plan is outlined in Table 12-3. Tone Levels 12.18 All of the tones used by the SX-200@ DIGITAL PABX are pro- vided by the Digital Signal Processor on the Main Control card. The system provides eight tone channels, each of which can generate either a dual or single frequency tone. One channel is used to generate a signal which controls the frequency and amplitude of the ringing generator output. Three channels are used for DTMF tone generation, and the remaining four are used to generate the system call progress tones Page 12-12
Engineering Information Originating Circuit ONS(D) ONS(A) Connecting Loss (dB) Loss (dB) Circuit TX Direction Rx Direction ONS(D) -6.0 -6.0 ONS(A) -6.2 -6.2 OPSS 6.0 -6.0 OPSL -3.0 -3.0 ACO(D) -4.0 -4.0 ACO(A) -3.2 -3.2 A-WA) -5.2 -5.2 AJ’-W) -5.0 -5.0 AKO(A) -6.2 -6.2 A-l-O(D) -6.0 -6.0 SA-iT -3.0 -3.0 ONS(D) -6.2 -6.2 ONS(A) -6.4 -6.4 OPSS -6.2 -6.2 OPSL -3.2 -3.2 ACO(D) -4.2 -4.2 ACO(A) -3.4 -3.4 AJ’-W) -5.4 -5.4 AJ-UD) -5.2 -5.2 ATO -6.4 -6.4 ATO -6.2 -5.2 sATT -3.2 -3.2 TABLE 12-3 CONFERENCING LOSS PLAN Page 12-13
Engineering Information TABLE 12-3 (CONT’D) CONFERENCING LOSS PLAN TX Direction Page 12-14
Engineering Information TABLE 12-3 (CONT’D) CONFERENCING LOSS PLAN Originating Circuit ATO ATO sA-lT Connecting Loss (dB) Loss (dB) Circuit TX Direction Rx Direction ONS(D) -6.2 -6.2 ONS(A) -6.4 -6.4 OPSS -6.2 -6.2 OPSL -3.2 -3.2 ACO(D) -4.2 -4.2 ACO(A) -3.4 -3.4 AJ-W) -5.4 -5.4 AJ’-W -5.2 -5.2 ATO -6.4 -6.4 ATO -6.2 -6.2 sATT -3.2 -3.2 ONS(D) -6.0 -6.0 ONS(A) -6.2 -6.2 OPSS -6.0 -6.0 OPSL -3.0 -3.0 ACO(D) -4.0 -4.0 ACO(A) -3.2 -3.2 AT-W) -5.2 -5.2 AT-W) -5.0 -5.0 ATO -6.2 -6.2 ATO( D) -6.0 -6.0 SAT-T -3.0 -3.0 ONS(D) -3.0 -3.0 ONS(A) -3.2 -3.2 OPSS -3.0 -3.0 OPSL 0 0 ACO(D) -1.0 -1.0 ACO(A) -0.2 -0.2 ATA) -2.2 -2.2 AWD) -3.0 -3.0 ATO -3.2 -3.2 ATO( D) -3.0 -3.0 sATT 0 0 12.19 Most call progress and DTMF tones require that the receive gain pad in the line or trunk circuit interface codec be set to a specific value for the duration of the tone. The exception is the camp- on/override tone, which does not require any adjustment of the pads. The call progress tones are described in Table 12-4. The interface settings for the call progress tones are outlined in Table 12-5. The DTMF levels and interface settings are outlined in Tables 12-6 and 12-7 respectively. Page 12-15
Engineering Information TABLE 12-4 SX-200@ NORTH AMERICAN CALL PROGRESS TONES Transfer dial tone 3 x (0.1 s on, 0.1 s off), followed by Reorder Busy Ringback Special ringback Camp-on Executive override 0.25 s on, 0.25 s on 0.5 s on, 0.5 s off 1 s on, 3 s off 0.4 s on, 0.2 s off, 0.4 s on, 3 s off. -17.0 to -20.0 -14.0 to -20.0 -17.0 to -20.0 -14.0 to -20.0 0.8 s on, (6 s off, 0.2 s on) repeated. Page 12-16
Engineering information TABLE 12-5 CALL PROGRESS TONE INTERFACE LEVELS Camp-on / Executive Override ONS(D) -20.0 ONS(A) -19.2 to -20.2 OPSS -20.0 OPSL -17.0 to -19.0 ACO(D) -14.0 to -20.0 ACO(A) -14.2 to -20.2 ATA) -17.2 to -20.2 A-W3 -17.0 to -20.0 ATO -17.2 to -20.2 ATO -17.0 to -20.0 sA=l-l- -17.0 to -19.0 Page 12-n
Engineering information TABLE 12-6 DTMF LEVELS - TRUNK INTERFACE INTO 600 OHMS Nominal level - single frequency -4.0 dBm Nominal level - frequency pair -1.0 dBm Nominal twist 0.0 dBm TABLE 12-7 DTMF TONE INTERFACE LEVELS Interface Interface Level Wm) ONS(D) ONS(A) OPSS OPSL ACO( D) ACO(A) AT-W) AT-W) ATO ATO SAT-K n/a n/a n/a n/a -1.0 -1.2 -1.2 -1.0 -1.2 -1.0 -1.0 Page 12-18/18