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| Manufacturer | Rockwell Automation |
| Brand | AB |
| Part Number/Catalog No. | 1771-AF |
| Module Type | Fiber-Optic Converter Module |
| Rate of Communication | 57,600 bit/s, 115,200 bits/s |
| Current Load | 600 Miliamperes |
| Required Slot(s) | 1 Slot of 1771 I/O Chassis |
| Listing | This specification list was created by dosupply.com. |
| Power Dissipation | 5 Watts |
| Backplane Current (at 5 Volts) | 1.0 Amperes |
| Thermal Dissipation | 17.06 BTU/hr |
| Cable | Coaxial Quad-Shield RG-6 |
| Upper Connector Keying | 54-56 |
| Lower Connector Keying | 16-18 |
| Dimensions | 3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm) |
The 1771-AF PLC 5 Fiber Optic Converter Module by AB is a converter
module which converts Twinax electrical signal to light for smooth
transmission over fiber-optic cables and then converts the light
back to the initial electrical signal. This method of conversion
allows for DH+ and remote I/O signals to travel without
interference over a fiber-optic cable. The 1771-AF is a
chassis-based module which is located on the 1771 I/O chassis and
it occupies only a single I/O slot. The module draws a backplane
current of 600mA at 5V DC and it dissipates 3W (10.3 thermal
dissipation) of heat when operational. The 1771-AF has a
point-to-point configuration and can transmit signals over a
maximum distance of 6500Ft (2Km) using 100/140μm fiber-optic cable.
It can also transmit a signal over a wide distance of 43,000 feet
using a combination of Twinax and 100-140μm fiber-optic cable and
when modules are paired it can transmit over 10,000 feet using a
twinax cable.
The 1771-AF has a receiver sensitivity of -24dBm over 1m distance
using a 100-140μm glass fiber-optic cable and it has an optical
wavelength of 820nm the module comes with an SMA-905 fiber-optic
connector cable and has an optical transmitter power of -21.0dBm
for 1m with 50-125μm fibre-optic cable all through -5.6dBn for 1m,
using 200-230μm fiber-optic cable. The module has factory-specified
connector loss guidelines of 1dBm per connector and signals
transmitted over the fiber-optic cable has a minimum bandwidth of
17MHz. The 1771-AF module has an operational temperature range
between 0-600C around on-condensing relative humidity range of
5-95% and the module is stored at a range of -40-850C.
