Sel MIRRORED BITS FGR-115MB Application Manual
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Sel MIRRORED BITS FGR-115MB Application Manual

Sel MIRRORED BITS FGR-115MB Application Manual

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Table of Contents

Application Guide
M
IRRORED
With FreeWave Technologies Spread
Spectrum Radios (Model FGR-115MB)
I
NTRODUCTION
M
B
IRRORED
ITS
performance communications directly between relays. The communications message contains
information to exchange internal logic directly between relays. Applications for M
include line protection pilot schemes, remote device control and monitoring, relay remote
tripping, automated sectionalizing and load restoration, bus protection, and much more.
NO. 3
Antenna
Surge Protection
RF Coaxial Cable
12 Vdc from Adapter
FreeWave FGR-115MB
Transceiver
(master)
SEL-C285 Cable
SEL-351S-7 Relay
(RXID=1, TXID=2)
SEL added a new protocol setting option, MB8, so that the M
compatible with communication devices which require a specific character bit count, such as
point-to-point spread spectrum (900 MHz) radios.
Date Code 20070803
B
ITS
David Costello and Ken Fodero
®
communications is an innovative technique that provides low-cost, high
10 Miles, Line-of-Sight
NO. 7
NO. 4
NO.1
NO. 2
Figure 1: Example Installation (Refer to Table 1)
Volume II
®
Communications
NO. 3
Antenna
Surge Protection
RF Coaxial Cable
Freewave FGR-115MB
NO. 1
Transceiver
(slave)
12 Vdc from SEL-351R
SEL-351R Cabinet
IRRORED
AG2000-02
IRRORED
NO. 7
NO. 4
NO. 5
SEL-2815M (DTE)
Optical
NO. 6
Fiber
SEL-351R-1
SEL-351R Relay
(RXID=2, TXID=1)
(RXID=2, TXID=1)
B
message structure is
ITS
SEL Application Guide 2000-02
B
ITS

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Summary of Contents for Sel MIRRORED BITS FGR-115MB

  • Page 1 (RXID=2, TXID=1) SEL-351R Cabinet Figure 1: Example Installation (Refer to Table 1) SEL added a new protocol setting option, MB8, so that the M message structure is IRRORED compatible with communication devices which require a specific character bit count, such as point-to-point spread spectrum (900 MHz) radios.

  • Page 2: Radio Selection

    EIA-232 communications. In addition, the relays generate a detailed Communications Data Log, which records the latest 255 channel failures, including a time and date stamp, cause of each error, and outage duration. Refer to the instruction manual of the SEL device for more details on each of these features.

  • Page 3: Commissioning Tests

    ETTINGS AND ONNECTIONS The required port settings for an SEL-351S Relay are shown below. Settings for any relay in the SEL-351 and SEL-311 family of relays would be the same. To establish communications via the radio, the most critical settings are PROTO, SPEED, RTSCTS, RXID, and TXID.
  • Page 4 Set TXMODE equal to P (Paced). To connect the relay to the radio, use an SEL-C285 cable, DB-9 male to DB-9 male straight- through. If complete electrical isolation is desired between the radio and antenna and the relay’s EIA-232 communications port, use the SEL-2815M Fiber-Optic Transceivers and fiber-optic cable to connect the relay to the radio as shown in Figure 1.
  • Page 5 Repeater2 897-0001 000-0000 000-0000 000-0000 000-0000 000-0000 000-0000 000-0000 000-0000 000-0000 Change Entry to Use (0-9) or A(ALL) (Esc) Exit to Main Menu Enter all zeros (000-0000) as your last number in list Date Code 20070803 SEL Application Guide 2000-02...
  • Page 6 To connect the radio to the antenna, use a low-loss RF coaxial cable. FreeWave recommends the use of tuned surge protection, installed between the radio and the antenna; this device can be installed at either end, or in the middle of the coaxial cable. SEL Application Guide 2000-02 Date Code 20070803...

  • Page 7: Initial Checkout

    ROKB LBOKA CBADA RBADA ROKA The result shown here is from an SEL-351S Relay. ROKA is asserted, meaning that the two relays have established M communications. For longer-term channel tests, use the IRRORED suggestions described in Monitoring Radio Performance. QUIPMENT The following equipment list details the required components and connections, as shown in Figure 1.

  • Page 8: Factory Assistance

    Notes: 1. SEL has tested the FGR-115MB radio to verify its operation with the settings and connections listed in this document. Other radios may also be used; performance may vary between different manufacturers. 2. Other antennas may also be used.

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