INSTALLATION-PERIPHERALS SECTION 100-816-207 MARCH 1993

KSTU OR PSTU

CIRCUIT 4

OR

QSTU,

CIRCUIT 2 (PORT 19)

RING

TIP

1UNIVERSITY SOUND MODEL TM-2

TELEPHONE ADAPTOR (OR EQUIVALENT)

 

 

 

 

HIGH LEVEL

 

 

 

 

 

 

INPUT

 

 

 

 

OUTPUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PHONE LINE

 

 

 

 

 

 

RCA JACK

*

BGM MUSIC

SOURCE

600Ω OUTPUT OR 8Ω OUTPUT

SEE PROGRAM 19 FOR SLOT KSTU OR PSTU ASSIGNMENT SEE PROGRAM 10-2, LED 10 FOR QSTU, PORT 19 ASSIGNMENT

NOTE:

1.UNIVERSITY SOUND 1327 Ralston Avenue Sylmar, Ca. 91342-7607 Phone: (818) 362-9516

*BGM SOURCE SPECIFICATIONS:

INPUT IMPEDANCE: 600Ω

INPUT VOLTAGE: RECOMMENDED LEVELS, MIN. = 0.14 VRMS (–15 dBm) MAX. = 0.77 VRMS (0 dBm)

FIGURE 7-2

DK16 BGM SOURCE/STANDARD TELEPHONE CIRCUIT PRECAUTION DIAGRAM

1)For DK16, enter the programming mode and identify the BGM slot number in Program 19 of the printed circuit board (KSTU, PSTU, PEKU, and PESU) which the BGM source will be connected to.

2)Connect the BGM source to the tip and ring of the appropriate circuit of the BGM PCB: KSTU or PSTU (circuit 4), PEKU (circuit 3), and PESU (circuit 8). In Program 10-2, use LED 09 or 10 to specify the circuit number PEKU or PESU. KSTU or PSTU does not require Pro- gram 10-2 assignment.

2A) For DK8, enter the programming mode and set LED 10 to on in Program 10-2. This assigns QSTU circuit 2, Port 19 as the BGM source for the system. You must cycle system power for Program 10-2to take effect.

3)If BGM is connected to PEKU or PESU, cut W5 on the PEKU or W7 on the PESU PCB that BGM is connected to.

4)Using the BGM source’s volume control, adjust the BGM volume to the desired level while listening to BGM via an digital or electronic telephone speaker and/or the ex- ternal page speakers. When BGM is sent to external speakers via the 600 ohm RCA jack PCB, use the external amplifier volume con- trol to balance the BGM and page volume levels.

2.24External Background Music Installation. The external background music options are closely associated with the external paging op- tions. Refer to Paragraph 5 for external paging amplifier installation.

3RELAY CONTROL OPTIONS

3.00General

3.01The DK8 KSU and DK16 Base Unit provides one relay, and the PIOU and PIOUS each provides two relays that control peripheral options.

7-4

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Toshiba DK 16, DK8 manual Relay Control Options, General