Phone Punx Files
- DATU System Application Diagram.
- Connections for All Systems (Except: 5 ESS With Integrated SLC Only, DMS-10
- System Connections for 5 ESS With Integrated SLCs Only.
- DMS-100 MDF Connections.
- DATU-RT Card Pin Locations.
- List of NTT Circuit Numbers.
- LED Functions (kinda useless, but good info for SEing).
- DATU Line Access Main Menu.
440hz.wav[MISSING] - 440hz.
The DATU dial tone.
614hz.wav - Two
beeps heard after initial audio monitor period ends.
A rare recording of a DATU reading a "Bad No Test Trunk". Thank you god,
for creating the
Greenwood Lake CO.
menu.wav[MISSING] - The
DATU RT working through a SLC-96 and finding a multi party line. Listen carefully
Digital Matrix telling me that I should "go outside and get him some cake".
Don't ask why.
Diagram of the network.
Detailed Description of the images.
FIG. 1 diagrammatically illustrates a telephone central office switch having a no
test trunk, through respective T, R, S and G leads of which a line-conditioning and
test device, such as a direct access test unit, may be controllably connectable to a
selected one of any of the line circuits served by the central office.
FIG. 2 diagrammatically illustrates an Ericsson ARF 101/102 central office switch.
FIG. 3 diagrammatically illustrates a Standard Electric PC-1000 central office switch.
FIG. 5 shows a test interface adapter installed between a DATU and A, B, S, S1, S2,
SL, BL and G leads of a Standard Electric PC-1000 central office switch.
FIG. 4 shows a test interface adapter according to the present invention installed
between a DATU and A, B, C, D and G leads of an Ericsson ARF 101/102 central office
FIG. 6 shows the internal signal mapping components of the interface adapter of
the present invention.
FIG. 8 schematically illustrates an NTT sleeve termination and current level sensor
unit of the interface adapter of FIG. 6.
FIG. 7 schematically illustrates the circuitries of the battery voltage
conditioning unit, A/B cut through unit, and tone detector unit of the interface
adapter of FIG. 6.
FIG. 9 schematically illustrates a ground connection unit of the interface adapter
of FIG. 6.
FIG. 10 schematically illustrates an SL and BL ground detector unit of the interface
adapter of FIG. 6.
FIG. 11 contains a cadence Table 1, associated with the cadence detection mechanism
for a Standard Electric central office switch.
FIG. 12 contains a cadence Table 2, associated with the cadence detection mechanism
for an Ericsson central office switch.