Toshiba strata CT Installation & Maintenance Manual page 169

Figure 5-10
H
C
Strata CT I&M Manual October 2000
4. Connect the HESC-65A cable to P601 of the HHEU (both HHEU1A versions and the
HHEU2 have P601) if the Loud Ringing Bell option is required.
HESC-65A Cabling
Refer to Chapter 6 – Peripheral Installation
5. For the V.3 HHEU1: If only the headset is connected to the HHEU, cut both sides of the
R607 resistor, then remove the resistor to eliminate electrical contact.
Note
Do not cut the R607 resistor if connecting an HESB to the HHEU for the Loud
Ringing Bell–even if a headset is also installed on the HHEU.
...or
For the V.4 HHEU1 and the HHEU2: if only the headset is connected to the HHEU, cut
the speaker OCA strap.
Note Do not cut the speaker OCA strap if connecting an HESB to the HHEU for the Loud
Ringing Bell–even if a headset is also installed on the HHEU.
6. Position the HHEU PCB on the standoffs inside the base, and secure with the two
provided screws.
Note
See Figures 5-7,~5-8
7. For 2000 & 2500-series digital telephones. Connect the wire plug of the HHEU PCB to
the HHEU connector on the PCB in the phone.
8. For 2000 & 2500-series digital telephones: If an HESB will be connected to the HHEU
(for Loud Ringing Bell), locate the EX.SP strap on the PCB in the telephone and cut the
strap.
9. For 2000 & 2500-series digital telephones: If a headset will be connected to the HHEU,
locate and cut the HHEU strap on the PCB in the phone.
Feed Through
for HESC-65(A) Cable
1488
HESC-65 Cable
or
HESC-65A Cable
HHEU
for Steps 7~8.
To HESB
Block
SW601
P601
for HESB installation procedures.
Station Apparatus
5-13