CHAPTER 3: INSTALLATION
DIRECT INPUT AND OUTPUT COMMUNICATIONS
L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
3-39
3
Figure 3-39: 7x Laser fiber modules
The following figure shows configuration for the 2I and 2J fiber-laser modules.
Figure 3-40: 2I and 2J laser fiber modules
3.4.4 G.703 interface
3.4.4.1 Description
G.703 is an International Telecommunications Union (ITU) standard for the transmission of data and voice signals. Modules
7R (one channel) and 7S (two channels) apply.
The following figure shows the 64K ITU G.703 co-directional interface configuration. This is module 7S.
The G.703 module is fixed at 64 kbps. The
SETTINGS
PRODUCT SETUP
DIRECT I/O
DIRECT I/O DATA RATE
setting is not
applicable to this module.
Observing any fiber transmitter output can injure the eye.
When using a laser Interface, attenuators can be necessary to ensure that you do not exceed the
maximum optical input power to the receiver.