GE Digital Energy L30, Инструкция по эксплуатации, Страница: 83 / 644

GE Multilin L30 Line Current Differential System 3-25
3 HARDWARE 3.3 PILOT CHANNEL COMMUNICATIONS
3
3.3PILOT CHANNEL COMMUNICATIONS 3.3.1 DESCRIPTION
A special inter-relay communications module is available for the L30. This module is plugged into slot “W” in horizontally
mounted units and slot “R” in vertically mounted units. Inter-relay channel communications is not the same as 10/100Base-
F interface communications (available as an option with the CPU module). Channel communication is used for sharing data
among relays.
The inter-relay communications modules are available with several interfaces as shown in the table below.
All of the fiber modules use ST type connectors. For two-terminal applications, each L30 relay requires at least one com-
munications channel.
Table 3–3: CHANNEL COMMUNICATION OPTIONS
MODULE SPECIFICATION
2A C37.94SM, 1300 nm, single-mode, ELED, 1 channel single-mode
2B C37.94SM, 1300 nm, single-mode, ELED, 2 channel single-mode
2E Bi-phase, 1 channel
2F Bi-phase, 2 channel
2G IEEE C37.94, 820 nm, 128 kbps, multi-mode, LED, 1 channel
2H IEEE C37.94, 820 nm, 128 kbps, multi-mode, LED, 2 channels
2S Managed Ethernet switch with high voltage power supply
2T Managed Ethernet switch with low voltage power supply
72 1550 nm, single-mode, laser, 1 channel
73 1550 nm, single-mode, laser, 2 channels
74 Channel 1 - RS422; channel 2 - 1550 nm, single-mode, laser
75 Channel 1 - G.703; channel 2 - 1550 nm, single-mode, laser
76 IEEE C37.94, 820 nm, 64 kbps, multi-mode, LED, 1 channel
77 IEEE C37.94, 820 nm, 64 kbps, multi-mode, LED, 2 channels
7A 820 nm, multi-mode, LED, 1 channel
7B 1300 nm, multi-mode, LED, 1 channel
7C 1300 nm, single-mode, ELED, 1 channel
7D 1300 nm, single-mode, laser, 1 channel
7E Channel 1: G.703, Channel 2: 820 nm, multi-mode
7F Channel 1: G.703, Channel 2: 1300 nm, multi-mode
7G Channel 1: G.703, Channel 2: 1300 nm, single-mode ELED
7H 820 nm, multi-mode, LED, 2 channels
7I 1300 nm, multi-mode, LED, 2 channels
7J 1300 nm, single-mode, ELED, 2 channels
7K 1300 nm, single-mode, LASER, 2 channels
7L Channel 1: RS422, channel: 820 nm, multi-mode, LED
7M Channel 1: RS422, channel 2: 1300 nm, multi-mode, LED
7N Channel 1: RS422, channel 2: 1300 nm, single-mode, ELED
7P Channel 1: RS422, channel 2: 1300 nm, single-mode, laser
7Q Channel 1: G.703, channel 2: 1300 nm, single-mode, laser
7R G.703, 1 channel
7S G.703, 2 channels
7T RS422, 1 channel
7V RS422, 2 channels, 2 clock inputs
7W RS422, 2 channels