Toshiba Strata DK 280 Installation Manual page 41

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H. PIOU/RSIU Subassembly PCBs
IMDU PCB (refer to Table 1-4):
One IMDU PCB may be installed on the PIOU or PIOUS PCB to provide built-in remote maintenance modem
capability for the Strata DK system.
H2.
H3.
K. HESB AmplifierISpeaker:
1. One HESB is required for each digital and electronic telephone providing the Loud Ringing Bell option.
2. One HESB is optional to provide single-zone external page connected to either a PIOU, PIOUS, or PEPU
(customer-supplied amplifiers/speakers may be used in place of the
3. One HESB is optional to provide a talkback amplifier/page speaker connected to a PIOU, PIOUS, or
PEPU (a customer-supplied talkback amplifiedpage speaker may be used in place of HESB).
1996
January
Configuration Guide (continued)
IMDU PCB
RMDS PCB
RSlS PCB
Actual HHEU PCBs
(25-pin)
PPTC
PIOUS
I
(installed on RSlU in slot 11)
I
Four Telephones with headsets
HESB).
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