7700 MultiFrame Manual
7707DT RS-232/422/485 Fiber Data Transceiver
Page - 2
Revision
1.8
Transmit Side
Receive Side
Fiber Type
Fiber
Links
Optical/Link
Budget
Ordering
Product Info
TX
Power
Ordering
Product Info
RX
Sensitivity
Description
Multi-Mode 2 <
3km
7707DT13-F2
-7dBm
7707DT13-F2
-28dBm
1310nm on Tx & Rx fibers
Single-Mode 2 21dB/50km
7707DT13-F2
-7dBm
7707DT13-F2
-28dBm
1310nm on Tx & Rx fibers
Single-Mode 1 14dB/30km*
7707DT13
-10dBm
7707DT13
-24dBm
1310nm, bi-directional, one fiber
Single-Mode 1(WDM) 25dB/60km 7707DT13M-W -1dBm 7707DT15-W
-26dBm
1310nm/1550nm, WDM, bi-
directional on one fiber
Single-Mode 1(CWDM) 24dB/80km** 7707DTxx-F2 0dBm 7707DTyy-F2 -28dBm
Different CWDM wavelengths on
Tx & Rx, with 8 channel CWDM
Mux/Demux**
Single-Mode 1(DWDM) 31dB/105km** 7707DTxxxx-F2 +7dBm 7707DTyyyy-F2 -28dBm
Different DWDM wavelengths on
Tx & Rx, with 8 channel DWDM
Mux/Demux**
*With >20dB return loss on fiber Interface
Tx Power/Rx Sensitivity are nominal values
±
1dBm
**Assume 8 Ch Mux/Demux loss of 3.5dB
Fiber Loss = 0.4/0.3dB per km @ 1310nm/1550nm
Table 1-1: Typical Application Configurations
CONTROL/
INDICATION
VistaLINK
®
Interface
LOCAL
CONTROL
LOCAL
INDICATION
4 RS-422/485
LTC
3 RS-232
(7707DT)
or
8 RS-232
(7707DT-GPIO)
4 RS-422/485
LTC
Optical
Receiver
Optical
Transmitter
TD
M
Mux
Optical
Combiner
Fiber
Output
Fiber
Input/
Output
Fiber
Input
(Dual
Fiber -F2
Version)
(Single
Fiber
Version)
(Dual
Fiber -F2
Version)
8 GPI
(7707DT-GPIO)
8 GPO
(7707DT-GPIO)
TDM
Demux
3 RS-232
(7707DT)
or
8 RS-232
(7707DT-GPIO)
Figure 1-1: 7707DT Block Diagram