Toshiba Strata DK40 - Sub Assemblies for Universal Slot Pcbs

DK40 Installation Sub Assemblies for Universal Slot PCBs
2-52
Strata DK40 I&M Manual Spring 1999
Refer to the Strata DK40 Programming Manual or DK Library CD-Rom for more details.
Sub Assemblies for Universal Slot PCBs
The following subassemblies can be installed onto certain Universal Slot PCBs if fitted into
one of the expansion cabinet slots.
Table 2-14 Sub Assembly PCB Descriptions
Subasssembly Host PCB Function Capacity
IMDU PIOU/PIOUS
Provides remote maintenance 300 or
1200 bps full duplex modem.
one per system
R48S RSTU
Provides loop voltage of -48v instead of
-24v to extend the standard telephone
circuit loop length from 168 to 504 ohms.
one per RSTU
RBSS RBSU
Provides an additional two S-BUS (NT)
ISDN BRI circuits (4 B channels).
one per RBSU
R40S1 RBSU
DC40v power supply unit for fitting on
RBSU1A. Supplies PSI to ISDN TE.
one per RBSU