Patton electronic 505, 504 user manual Product Description, Surge Protection Benefits

2.0 GENERAL INFORMATION

Thank you for your purchase of this Patton Electronics product. This product has been thoroughly inspected and tested and is warranted for One Year parts and labor. If any questions arise during installation or use of the unit, contact Patton Electronics Technical Support at (301)975-1000.

2.1 PRODUCT DESCRIPTION

The Patton Model 504 & 505 Surge Protected DB-25 to Modular Adapters allow you to simplify cabling connections and protect your RS-232 or RS-422DB-25 equipment at the same time. Each adapter is custom wired according to yourpin-out diagram (no “standard” wiring). Up to 1500 Watts of surge protection per modular pin is provided. On the Models 504, an RJ-11 jack is used, and up to 6 pins may be protected. On the Model 505, an RJ-45 jack is used, and up to 8 pins may be protected. Both the Model 504 and 505 employ Silicon Avalanche Diodes for superior transient protection. You may specify a clamping voltage of 27V for RS-232 applications or 6.8V for RS-422 applications. Surges are shunted safely to chassis ground through the D-shell connector. Male or female DB-25 connectors are available.

Warning: These products will not provide complete protection should your equipment be subject to a direct lightning hit.

2.2 SURGE PROTECTION BENEFITS

The method of surge protection used in the Models 504 & 505 adds four benefits to your system:

1)High Surge Capacity. The Models 504 & 505 dissipate up to 1500 Watts per wire in 1.0 millisecond.

2)Quick Response. The Models 504 & 505 have fast response times (1 pS at the component level; 0.5 µS installed). Transient surges are clamped at 27V for RS-232 and 6.8V for RS-422.

3)Low Impedance. The Models 504 & 505 add minimal load to your system--about the same as a gender changer.

4)Open Failure. The Models 504 & 505 fail “open” if your system experiences a severe transient or power fault above the rated voltage of the protector. This means that data and surge energy is shunted directly to chassis ground, rather that being allowed to flow throughout the system.

3.0 MODEL 504 & 505 INSTALLATION

The Patton Models 504 & 505 are simple to install and require no user configuration. Follow these installation steps:

1)Be sure the metal D-sub connector on the device you are protecting is connected to frame ground. If not, see step 4, below.

2)Plug the DB-25 connector of the Model 504 or 505 directly into the DB-25 Serial port of the device you are protecting. Use of a serial cable reduces the effectiveness of the protection you would otherwise receive.

3)Plug your modular cable into the jack on the Model 504 or 505. If you have a Model 504, the cable must be terminated with an RJ-11 plug. If you have a Model 505, the cable must be terminated with an RJ-45 plug.

4)To provide an alternate ground connection, use the short strap supplied with the unit. Connect one loop to the device chassis (or other chassis ground) and the other loop to the Model 504 or 505 as shown below.

Connect to

D-Sub

Screw

Connect to

Chassis

Ground

Figure 1. How to Connect the Patton Model DB-25 to Your PC, Modem or Printer

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