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# NATURAL MICROSYSTEMS
VBX 200, VBX 400
Card Type Telephony
Chip Set TI 320C10
Data Bus 16-bit ISA
I/O Options Analog in/out, digital in/out, voice in/out
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+---------------------+-------|
| Lines 1 & 2 out | J1 | Audio in/out | J4 |
|----------------------+-------+---------------------+-------|
| Lines 3 & 4 out | J2 | Analog/digital I/O | J5 |
| | | (see pinout below) | |
|----------------------+-------+---------------------+-------|
| Power and signalling | J3 | | |
| (see pinout below) | | | |
|------------------------------------------------------------|
| Note: Lines 2 & 3 are not present on model VBX 200. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| J3 PINOUT |
|------------------------------------------------------------|
| Function | Pin | Function | Pin |
|-----------------------+------+----------------------+------|
| Channel 1 E signal | 1 | Channel 3 SB signal | 9 |
|-----------------------+------+----------------------+------|
| Channel 1 M signal | 2 | Channel 4 E signal | 10 |
|-----------------------+------+----------------------+------|
| Channel 1 SB signal | 3 | Channel 4 M signal | 11 |
|-----------------------+------+----------------------+------|
| Channel 2 E signal | 4 | Channel 4 SB signal | 12 |
|-----------------------+------+----------------------+------|
| Channel 2 M signal | 5 | Battery ground | 13 |
|-----------------------+------+----------------------+------|
| Channel 2 SB signal | 6 | -48VDC battery | 14 |
|-----------------------+------+----------------------+------|
| Channel 3 E signal | 7 | -12V out | 15 |
|-----------------------+------+----------------------+------|
| Channel 3 M signal | 8 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| J5 PINOUT |
|------------------------------------------------------------|
| Function | Pin | Function | Pin |
|------------------------+-----+-----------------------+-----|
| Analog channel 1 | 1 | Analog channel 3 | 11 |
| in/out | | in/out | |
|------------------------+-----+-----------------------+-----|
| Analog channel 2 | 2 | Analog channel 4 | 12 |
| in/out | | in/out | |
|------------------------+-----+-----------------------+-----|
| Digital channel 1 in | 3 | Digital channel 3 in | 13 |
|------------------------+-----+-----------------------+-----|
| Digital channel 2 in | 4 | Digital channel 4 in | 14 |
|------------------------+-----+-----------------------+-----|
| Digital channel 1 out | 5 | Digital channel 3 out | 15 |
|------------------------+-----+-----------------------+-----|
| Digital channel 2 out | 6 | Digital channel 4 out | 16 |
|------------------------+-----+-----------------------+-----|
| Not used | 7 | Not used | 17 |
|------------------------+-----+-----------------------+-----|
| Not used | 8 | Not used | 18 |
|------------------------+-----+-----------------------+-----|
| +12VDC power | 9 | Digital signal ground | 19 |
|------------------------+-----+-----------------------+-----|
| -12VDC power | 10 | Analog signal ground | 20 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|-------------------------------------+-------+--------------|
| » | Interrupt driver enabled | W1 | Closed |
|---+---------------------------------+-------+--------------|
| | Interrupt driver disabled | W1 | Open |
|---+---------------------------------+-------+--------------|
| » | Direct audio path for port 1 | A11 | Open |
| | enabled | | |
|---+---------------------------------+-------+--------------|
| | Off-hook bypass for port 1 | A11 | Closed |
| | enabled | | |
|---+---------------------------------+-------+--------------|
| » | Direct audio path for port 2 | A21 | Open |
| | enabled | | |
|---+---------------------------------+-------+--------------|
| | Off-hook bypass for port 2 | A21 | Closed |
| | enabled | | |
|---+---------------------------------+-------+--------------|
| » | Direct audio path for port 3 | A31 | Open |
| | enabled | | |
|---+---------------------------------+-------+--------------|
| | Off-hook bypass for port 3 | A31 | Closed |
| | enabled | | |
|---+---------------------------------+-------+--------------|
| » | Direct audio path for port 4 | A41 | Open |
| | enabled | | |
|---+---------------------------------+-------+--------------|
| | Off-hook bypass for port 4 | A41 | Closed |
| | enabled | | |
|---+---------------------------------+-------+--------------|
| » | Hook relay for port 1 enabled | A12 | Closed |
|---+---------------------------------+-------+--------------|
| | Hook relay for port 1 disabled | A12 | Open |
|---+---------------------------------+-------+--------------|
| » | Hook relay for port 2 enabled | A22 | Closed |
|---+---------------------------------+-------+--------------|
| | Hook relay for port 2 disabled | A22 | Open |
|---+---------------------------------+-------+--------------|
| » | Hook relay for port 3 enabled | A32 | Closed |
|---+---------------------------------+-------+--------------|
| | Hook relay for port 3 disabled | A32 | Open |
|---+---------------------------------+-------+--------------|
| » | Hook relay for port 4 enabled | A42 | Closed |
|---+---------------------------------+-------+--------------|
| | Hook relay for port 4 disabled | A42 | Open |
|---+---------------------------------+-------+--------------|
| » | Ring detect for port 1 enabled | A13 | Closed |
|---+---------------------------------+-------+--------------|
| | Ring detect for port 1 disabled | A13 | Open |
|---+---------------------------------+-------+--------------|
| » | Ring detect for port 2 enabled | A23 | Closed |
|---+---------------------------------+-------+--------------|
| | Ring detect for port 2 disabled | A23 | Open |
|---+---------------------------------+-------+--------------|
| » | Ring detect for port 3 enabled | A33 | Closed |
|---+---------------------------------+-------+--------------|
| | Ring detect for port 3 disabled | A33 | Open |
|---+---------------------------------+-------+--------------|
| » | Ring detect for port 4 enabled | A43 | Closed |
|---+---------------------------------+-------+--------------|
| | Ring detect for port 4 disabled | A43 | Open |
|---+---------------------------------+-------+--------------|
| | Unidentified | CF1 | Unidentified |
|---+---------------------------------+-------+--------------|
| | Unidentified | CF2 | Unidentified |
|---+---------------------------------+-------+--------------|
| | Unidentified | CF3 | Unidentified |
|------------------------------------------------------------|
| Note: If multiple boards are installed in a system, |
| only one board should have W1 closed. |
+------------------------------------------------------------+
+-----------------------------------------------------------------------+
| LINE TYPE |
|-----------------------------------------------------------------------|
|Setting | A11 | A12 | A13 | A21 | A22 | A23 | A31 | A32 | A33 |
|--------+------+------+------+------+------+------+------+------+------|
|»| Loop | Open |Closed|Closed| Open |Closed|Closed| Open |Closed|Closed|
| |Start | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |Ground| Open |Closed|Closed| Open |Closed|Closed| Open |Closed|Closed|
| |Start | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| | DID |Closed| Open | Open |Closed| Open | Open |Closed| Open | Open |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open |Closed| Open | Open |Closed| Open | Open |
| | Type | | | | | | | | | |
| | 1A | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open |Closed| Open | Open |Closed| Open | Open |
| | Type | | | | | | | | | |
| | 1B | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open |Closed| Open | Open |Closed| Open | Open |
| | Type | | | | | | | | | |
| | 2A | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open |Closed| Open | Open |Closed| Open | Open |
| | Type | | | | | | | | | |
| | 2B | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open |Closed| Open | Open |Closed| Open | Open |
| | Type | | | | | | | | | |
| | 4A | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open |Closed| Open | Open |Closed| Open | Open |
| | Type | | | | | | | | | |
| | 4B | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open |Closed| Open | Open |Closed| Open | Open |
| | Type | | | | | | | | | |
| | 5A | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open |Closed| Open | Open |Closed| Open | Open |
| | Type | | | | | | | | | |
| | 5B | | | | | | | | | |
+-----------------------------------------------------------------------+
+-----------------------------------------------------------------------+
| LINE TYPE (CON’T) |
|-----------------------------------------------------------------------|
|Setting | A41 | A42 | A43 | B11 | B12 | B13 | B21 | B22 | B23 |
|--------+------+------+------+------+------+------+------+------+------|
|»| Loop | Open |Closed|Closed| Open | Open | Open | Open | Open | Open |
| |Start | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |Ground| Open |Closed|Closed|Closed| Open |Closed|Closed| Open |Closed|
| |Start | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| | DID |Closed| Open | Open | Open | Open | Open | Open | Open | Open |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open | Open |Closed| Open | Open |Closed| Open |
| | Type | | | | | | | | | |
| | 1A | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open | Open | Open | Open | Open | Open | Open |
| | Type | | | | | | | | | |
| | 1B | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open | Open |Closed| Open | Open |Closed| Open |
| | Type | | | | | | | | | |
| | 2A | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open | Open | Open | Open | Open | Open | Open |
| | Type | | | | | | | | | |
| | 2B | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open | Open |Closed| Open | Open |Closed| Open |
| | Type | | | | | | | | | |
| | 4A | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open | Open | Open | Open | Open | Open | Open |
| | Type | | | | | | | | | |
| | 4B | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open | Open |Closed| Open | Open |Closed| Open |
| | Type | | | | | | | | | |
| | 5A | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+------|
| |E & M |Closed| Open | Open | Open | Open | Open | Open | Open | Open |
| | Type | | | | | | | | | |
| | 5B | | | | | | | | | |
+-----------------------------------------------------------------------+
+--------------------------------------------------------------------------+
| LINE TYPE (CON’T) |
|--------------------------------------------------------------------------|
|Setting | B31 | B32 | B33 | B41 | B42 | B43 | W9 | W13 | Battery |
|--------+------+------+------+------+------+------+------+------+---------|
|»| Loop | Open | Open | Open | Open | Open | Open |Closed|Closed| Not |
| |Start | | | | | | | | |installed|
|-+------+------+------+------+------+------+------+------+------+---------|
| |Ground|Closed| Open |Closed|Closed| Open |Closed|Closed|Closed| Not |
| |Start | | | | | | | | |installed|
|-+------+------+------+------+------+------+------+------+------+---------|
| | DID | Open | Open | Open | Open | Open | Open | Open | Open |Installed|
|-+------+------+------+------+------+------+------+------+------+---------|
| |E & M | Open |Closed| Open | Open |Closed| Open |Closed|Closed| Not |
| | Type | | | | | | | | |installed|
| | 1A | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+---------|
| |E & M | Open | Open | Open | Open | Open | Open |Closed|Closed| Not |
| | Type | | | | | | | | |installed|
| | 1B | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+---------|
| |E & M | Open |Closed| Open | Open |Closed| Open |Closed|Closed| Not |
| | Type | | | | | | | | |installed|
| | 2A | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+---------|
| |E & M | Open | Open | Open | Open | Open | Open |Closed|Closed| Not |
| | Type | | | | | | | | |installed|
| | 2B | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+---------|
| |E & M | Open |Closed| Open | Open |Closed| Open |Closed|Closed| Not |
| | Type | | | | | | | | |installed|
| | 4A | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+---------|
| |E & M | Open | Open | Open | Open | Open | Open |Closed|Closed| Not |
| | Type | | | | | | | | |installed|
| | 4B | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+---------|
| |E & M | Open |Closed| Open | Open |Closed| Open |Closed|Closed| Not |
| | Type | | | | | | | | |installed|
| | 5A | | | | | | | | | |
|-+------+------+------+------+------+------+------+------+------+---------|
| |E & M | Open | Open | Open | Open | Open | Open |Closed|Closed| Not |
| | Type | | | | | | | | |installed|
| | 5B | | | | | | | | | |
+--------------------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS |
|------------------------------------------------------------|
| Setting | SW1/1 | SW1/2 | SW1/3 |
|-----------------+--------------+-------------+-------------|
| | 100h | Off | Off | On |
|---+-------------+--------------+-------------+-------------|
| | 180h | Off | On | Off |
|---+-------------+--------------+-------------+-------------|
| | 1A0h | On | Off | Off |
|---+-------------+--------------+-------------+-------------|
| | 1C0h | On | On | Off |
|---+-------------+--------------+-------------+-------------|
| | 280h | Off | On | On |
|---+-------------+--------------+-------------+-------------|
| | 2A0h | On | Off | On |
|---+-------------+--------------+-------------+-------------|
| | 2C0h | On | On | On |
|---+-------------+--------------+-------------+-------------|
| » | 340h | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT |
|------------------------------------------------------------|
|Setting | W2 | W3 | W4 | W5 | W6 | W7 |
|--------+-----------+-------+-------+-------+-------+-------|
| |IRQ3 | Open |Closed | Open | Open | Open | Open |
|--+-----+-----------+-------+-------+-------+-------+-------|
| |IRQ4 | Open | Open |Closed | Open | Open | Open |
|--+-----+-----------+-------+-------+-------+-------+-------|
|» |IRQ5 | Open | Open | Open |Closed | Open | Open |
|--+-----+-----------+-------+-------+-------+-------+-------|
| |IRQ6 | Open | Open | Open | Open |Closed | Open |
|--+-----+-----------+-------+-------+-------+-------+-------|
| |IRQ7 | Open | Open | Open | Open | Open |Closed |
|--+-----+-----------+-------+-------+-------+-------+-------|
| |IRQ9 | Closed | Open | Open | Open | Open | Open |
|------------------------------------------------------------|
| Note: If multiple boards are installed in a system, |
| assign them all the same IRQ. |
+------------------------------------------------------------+