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# RAD DATA COMMUNICATIONS
SRM-5SC
Modem Type Data (Synchronous)
Maximum Data Rate 19.2Kbps
Data Bus External
Data Modulation Protocol Proprietary
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+-----------------+----------|
| RS-232 | CN1 | Ground | GND |
|--------------------+----------+-----------------+----------|
| RJ-12/RJ-45 | CN2 | Transmit | XMT |
|--------------------+----------+-----------------+----------|
| Receive | RCV | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BAUD RATE |
|------------------------------------------------------------|
| Setting | SW1 |
|-------------------------------+----------------------------|
| 19.2Kbps | 0 |
|-------------------------------+----------------------------|
| 14.4Kbps | 1 |
|-------------------------------+----------------------------|
| » 9.6Kbps | 2 |
|-------------------------------+----------------------------|
| 7.2Kbps | 3 |
|-------------------------------+----------------------------|
| 4.8Kbps | 4 |
|-------------------------------+----------------------------|
| 3.6Kbps | 5 |
|-------------------------------+----------------------------|
| 2.4Kbps | 6 |
|-------------------------------+----------------------------|
| 1.8Kbps | 7 |
|-------------------------------+----------------------------|
| 1.2Kbps | 8 |
|-------------------------------+----------------------------|
| 900bps | 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CD SIGNAL |
|------------------------------------------------------------|
| Setting | SW2/D |
|-------------------------------+----------------------------|
| » Forced high | On |
|-------------------------------+----------------------------|
| Normal | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|----------+----------+----------+---------------------------|
| CD | Red | On | CD signal is high |
|----------+----------+----------+---------------------------|
| CD | Red | Off | CD signal is low |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CLOCK SOURCE |
|------------------------------------------------------------|
| Setting | SW2/A | SW2/B | SW2/C |
|---------------+--------------+--------------+--------------|
| External | On | Off | Off |
|---------------+--------------+--------------+--------------|
| » Internal | Off | Off | On |
|---------------+--------------+--------------+--------------|
| Receive | Off | On | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RTS/CTS DELAY |
|------------------------------------------------------------|
| Setting | SW2/E |
|-------------------------------+----------------------------|
| » 6-8 ms | Off |
|-------------------------------+----------------------------|
| 50-70 ms | On |
+------------------------------------------------------------+