Amplified Page Speaker Option - Toshiba Strara CTX Series Installation And Maintenance Manual

Step 3: Test the Telephone External Ringer Option
1. Test the AC input voltage by plugging power cord into the power supply and to a 240VAC power
source.
2. Make an Exchange or station call to the station configured for the loud ringing bell. Ringing will
be heard over the HESB.
3. Use a small, slotted screwdriver to turn the volume control on the back of the HESB to the desired
level and adjust the ring volume control on the telephone.
4. If ringing is heard at the station, but not over the HESB, check the following while the station is
ringing:
Using a suitable voltmeter, measure voltage across terminals 1 (+) and 2 (-) of the HESB TB1
terminal block. Voltage indication should be 4.5~5VDC.
Ringing stops once the call is manually answered. There should be NO voltage potential
Note
across terminals 1 and 2.
If voltage is not as specified during ringing, check that the telephone wiring connections to the
HESB have been made properly (wires to terminals 1 and 2 of the HESB TB1 terminal block
may have been reversed).

Amplified Page Speaker Option

The amplified speaker option enables the HESB to be configured as a paging speaker. The HESB is
connected to the BIOU 600-ohm page output to provide an amplified external speaker.
To install the HESB amplified speaker option
1. Connect a jumper between terminals 1 and 2 of the HESB TB1 terminal block (see
2. Connect a jumper between terminals 6 and 7 of the HESB TB1 terminal block.
3. Connect a jumper between terminals 5 and 8 of the HESB TB1 terminal block.
4. Connect a jumper between terminals 3 and 4 of the HESB TB2 terminal block.
5. Connect a jumper between terminals 5 and 6 of the HESB TB2 terminal block.
6. Connect the BIOU 600-ohm page output (pins 13 and 38) to terminals 3 and 4 of the HESB TB1
terminal block.
7. Connect the power supply's +12V lead to terminal 1 of the HESB TB2 terminal block, and connect
the 0V lead to terminal 2.
8. Plug the provided power cord into the power supply and to a 240VAC power source.
9. Set the BIOU SW600 switch to the SPO position.
Important! If AC voltage is not within range, have a qualified electrician correct the problem.
Strata CTX I&M September 2002
Peripheral Installation
Figure 8-22).
8-21