Toa VS-900 - Manual (Page 10)

10
7.2. Equipment Functions
• VS-900MF Main Frame
The VS-900MF accommodates the following cards: Up to 2 VS-900MS or VS-900AL Cards (both cards may
be mixed), up to 4 VS-900RS or VS-910RS Cards (both cards may be mixed), 1 VS-900CO Card, 1 VS-
900AF Card, and 1 VS-900TI Card.
The Main Frame has 2 RS-232C ports; one for programming and the other for operation log output.
• VS-900MS Master Station Interface Card
The VS-900MS is used for master station connection. Up to 2 master stations can be connected per card,
and an external recording device can be connected to each line.
• VS-900AL Telephone Interface Card
The VS-900AL is used for connecting telephone sets (in compliance with the FCC Regulation Part 68). Up to
2 telephones can be connected per card, and an external recording device can be connected to each line.
• VS-900RS Substation Interface Card
The VS-900RS is used for substation connection. Up to 16 substations can be connected per card. The
Substation Interface Card has 2 speech links, one of which also functions as a paging link with the paging
input/output connected to an external amplifier.
• VS-910RS Substation Interface Card
The VS-910RS is used for connecting full-duplex substations and option handsets. Up to 16 substations can
be connected per card. The Substation Interface Card has 2 speech links, one of which also functions as a
paging link with the paging input/output connected to an external amplifier.
• VS-900CO Outside Line Interface Card
The VS-900CO is used for outside line connection. Up to 2 outside lines can be connected per card, and an
external recording device can be connected to each line.
• VS-900AF Audio Function Card
The VS-900AF enables Conference, External Amplifier Paging, and External Source Distribution functions.
The Audio Function Card has 1 conference link (maximum 4 stations), 1 audio output and 16 control outputs
for external amplifier paging, and 1 audio input and 4 control inputs for external source distribution.
• VS-900TI Tie-Line Interface Card
The VS-900TI is used to interconnect multiple exchanges. The Tie-Line Interface Card can connect up to 4
links made up by 1 pair of data lines and 2 pairs of voice lines.
• VS-900SC Site Connector
When tie-line connecting VS-900 system exchanges, fiber optic cables can be used to extend the audio line
longer than the maximum distance* possible using twisted pair cable. TOA's VS-900 Site Connector is used
to connect the VS-900 system exchanges to the fiber optic interface as shown in the following figure.
* 1.5 km when an AWG20 twisted pair cable is used.
• PU-200 Power Transformer Unit
The wall-mountable PU-200 has 2 20V/2.5A AC outputs. One PU-200 unit is required when up to 2
VS-900RS Cards are installed, and 2 PU-200 units are required when 3 or more VS-900RS Cards are
installed.
• YC-303 Main Frame Wall Mounting Bracket
The YC-303 is used when mounting the main frame on the wall.
• PN-100B Rack Mount Panel
The PN-100B provides side-by-side rack mounting capability for up to 2 PU-200 transformer units.
• MS-900 Master Station
The MS-900 can make calls to or receive calls from the substation. It utilizes 2 pairs of twisted cables.
• RS-150 Substation (Indoor Type)
The RS-150 can call and converse with the registered master stations. It utilizes a single-pair shielded cable.