Data line surge protectors
The ISD-1200-T series provides surge protection for serial data lines to prevent damage to devices such as modems, fax machines, I/O ports, terminals, instrumentation, hubs, and any other devices that use serial data connections. The ISD-1200-T can add serial data line protection to a variety of serial connections: RS-232, RS-422, and RS-485.
| • Data Line Surge Protection | |
| Maximum Power Protection | 5000 watts |
| Number of Protected Lines | 4 |
| Surge Capacity | 20 kV, 8/20 μs impulse per line |
| Working Voltage | ISD-1210-T: 15 V ISD-1230-T: 5 V |
| Maximum Load Current | 0.4 A (20°C), 0.13 A (85°C) |
| Response Time | < 1 ns |
| Protection Mode | Line to line, line to ground |
| Protection Rating | IP30 |
| Bandwidth | 10 MHz loss < 1 dB |
| • Connectors | |
| ISD-1110-T | Data in: DB9 male Data out: DB9 female |
| ISD-1130-T | Data in: Terminal block Data out: Terminal block |
| ISD-1210-T/1230-T | Data in: Terminal block Data out: Terminal block |
| • Physical Characteristics | |
| Housing | Metal |
| Dimensions | ISD-1210-T: 95 x 53 x 25 mm (3.74 x 2.01 x 0.98 in) ISD-1230-T: 95 x 53 x 25 mm (3.74 x 2.01 x 0.98 in) |
| Weight | Product only ISD-1210-T: 214 g (0.47 lb) ISD-1230-T: 212 g (0.46 lb) Packaged ISD-1210-T: 276 g (0.61 lb) ISD-1230-T: 274 g |
| • Environmental Limits Note: Please contact Moxa if you require products guaranteed to function properly at higher altitudes. | |
| Operating Temperature | -40 to 85°C (-40 to 185°F) |
| Storage Temperature | -40 to 85°C (-40 to 185°F) |
| Ambient Relative Humidity | 95% max, non-condensing |
| • Standards and Certifications | |
| EMS | IEC 61643-21 C2 (20 kV 1.2/50, 10 kA 8/20) |
| • Warranty and RMA Policy | |
| Warranty Period | 5 years (limited to 1-time use) |
| Warranty Details | See www.moxa.com/warranty Note: ISD products will only be repaired once within 5 years of purchase. After the first repair, the product’s warranty will no longer be valid. |
| RMA Policy | Moxa does not provide RMA service for ISD products whose PCB board was destroyed by a surge. Note: Be sure to purchase the ISD product with maximum surge protection suitable for your environment. |
| Model No. | Description | |
|---|---|---|
| ISD-1210-T | 4 data line advanced surge protector, RS-232, 20 kV surge protection, -40 to 85°C operating temperature | |
| ISD-1230-T | 4 data line advanced surge protector, RS-422/485, 20 kV surge protection, -40 to 85°C operating temperature |


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