Справочник Пользователя для Pelco FR8308

 

18

C1647M  (3/05)

 

Number of Channels

8

Modulation Type

Pulse code modulation, 8-bit resolution

Video Input

1.0 Vp-p, 75 ohms; NTSC, PAL, and SECAM

Bandwidth

6.5 MHz

Gain

Unity

Crosstalk

-50 dB typical at 3.58 MHz

Differential Gain

<1%

Differential Phase

<1.2°

Tilt

<1%

Signal-to-Noise Ratio

>60 dB (CCIR weighted)

 

Operating Temperature

-40° to 167°F (-40° to 75°C)

Input Power Requirements

12 VDC or 24 VAC, 460 mA 

LED Indicators

Transmitter

Power
Video Present (per channel)

Receiver

Power
Video Present (per channel)
Carrier Detect

Dimensions

8.75” D x 2.28” W x 4.81” H
(22.23 x 5.79 x 12.22 cm)

Unit Weight

2.56 lb (1.16 kg)

 

Connectors 

Video

BNC (per channel)

Rack Power/Alarm

4-pin connector

Standalone Power

2-pin connector, screw terminal

Fiber Optic

ST for multimode fiber
ST or FC for single-mode fiber

 

Multimode
(62.5/125 µm)

1310 nm

20 dB

 

†

 

 1 km (0.6 mi)

 

††

 

<15.6 mW

Single-mode
(9/125 µm)

1310 nm

20 dB

30 km (18.6 mi)

 

§

 

<15.6 mW

*The FT8308 transmitter/FR8308 receiver is classified by the FDA as a Class 1 laser product.

 

†

 

When using 50/125 µm fiber, subtract 3 dB from the optical power budget.

 

††

 

Maximum transmission distance is limited by fiber bandwidth.

 

§

 

Maximum transmission distance is based on attenuation of 0.5 dB/km plus a 5 dB buffer for 
connector and splice losses.