Teltronics SEB NET-PATH, Инструкция по установке и эксплуатации

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NET-PATH Installation and Operation Guide
Page 2-5
Figure 2-5 DB9 male to RJ45 Cable Connection Loopback
Telephone
Line
Connection
The RJ11C connector on the NET-PATH mates with standard modular cables
commonly used with telephone equipment. Connect one end of the cable to the NET-
PATH and the other end to the wall or floor jack assigned to the telephone line. The
NET-PATH must connect to a dedicated telephone line for reliable operation. We
recommend that you use an external, business telephone line.
Contact Sensor
Inputs
The NET-PATH provides eight or sixteen contact sensors, depending on the model.
The RJ45 jacks on the back of the NET-PATH accommodate four contact sensor inputs
each. These jacks, labeled “Contact Sensor Inputs,” are marked with a blue symbol.
Each contact sensor input detects and reports when the state of an attached external
device changes. You can configure each sensor as normally open or normally closed
through software options in the NET-PATH database.
NET-PATH contact sensors support three types of input sensing. The first type of input
sensing is based on RS232C and supports wet input. The second type is also based on
RS232C and it supports dry input. The third type of input sensing supports devices that
use RS423A signal levels. All three input types are explained in detail below. Each
sensor has two internal jumpers that determine the mode of operation (RS232 vs.
RS423). See "Contact Sensor Strap Options"‚ page 2-8 for option strap details. The
factory default setting for each sensor is based on RS232C input levels and supports
wet and dry sensor inputs.
The general operation of each sensor is the same regardless of how it was configured.
The sensor reports a change in state (inactive to active or active to inactive) when the
input voltage passes through a detection threshold and remains at the new level for a
user-defined period, usually several seconds.
Contact Sensor
Wiring
For distances of up to 50 feet, we recommend a 24-gauge wire to connect the terminal
pairs and the physical sensors. Use a larger gauge for longer runs. For reliable
operation, the cable length should not exceed 1000 feet.
Warning
When configuring the NET-PATH with an
international modem, do not connect the modem to the
telephone network until you have programmed it with the
appropriate country code. Use the NET-PATH LCD control
panel to program the country code, as outlined in Chapter 4.
If you are unsure of the modem type, you can review the
model structure information (displayed on the serial number
label attached to the bottom of the unit) See "Determining the
NET-PATH Model"‚ page 1-1.