I'll be checking in with my optometrist to upgrade my ability to differentiate between a DK40 and a CIX40
Here's the relevant info:
Alternate BGM Source Installation
A BGM source can be connected to a station PCB (QSTU2, KSTU2, RSTU2/PSTU, RDSU,
PEKU, or PESU) to send music to all electronic/digital telephone speakers and to the external page
system via a PIOU, PIOUS, or PEPU. The BGM source is separate from the MOH source
connected to the DK424 or DK424i processor PCB. An isolation transformer is needed to connect
a music source to one of the above standard telephone circuits (see Figure 12-4).
➤ To connect the BGM source to the QSTU2, KSTU2, RSTU2/PSTU, RDSU, PEKU or PESU
See Figures 12-4~12-6 and follow these steps:
1. Access Program 10-2. If the BGM source is connected to circuit 3 on a PEKU, set LED 09 to
On. If the source is connected to circuit 8 on a PESU, set LED 10 to On. If connecting BGM to
QSTU2, KSTU2, RSTU2, RDSU or PSTU, LED 09 and 10 should be Off.
2. Using Program 19, identify (assign) the BGM slot.
3. If connecting the BGM source to a PEKU or PESU: Connect the PEKU tip and ring of circuit
03 to the 600 ohms or 8 ohms output of the BGM source or connect the BGM output to circuit
8 of a PESU.
...or
If connecting the BGM source to a QSTU2, KSTU2, RSTU2/PSTU or RDSU: Connect circuit
2 of the RSTU2/PSTU or RDSU to a customer-supplied isolation transformer and BGM
source.
Note The isolation transformer protects the BGM source from potentially damaging QSTU2,
KSTU2, RSTU2/PSTU or RDSU voltage. Some music sources which are designed for
telephone system applications may have this protection built-in and do not require the
transformer. (Consult the documentation provided with the music source.)
4. If the BGM source is connected to either a W5 on the PEKU or W7 on the PESU PCB, cut the
strap. There is no strap to cut on the QSTU2/KSTU2, RSTU2/PSTU or RDSU.
P.S. Hmmm... I wonder if this will work for MOH?
