Summary of Contents for Parabel CR-505
- Page 1 LAN Adapter with Bypass Port СR-505 User Manual Version 1.0 06.09.2016 Novosibirsk 2016...
- Page 3 Developer and producer: LLC Parabel Russia, 630090, Novosibirsk-90, p/b 126 http://www.parabel.ru Email: info@parabel.ru Phone/fax: +7-383-2138707...
- Page 4 Attention! The device cannot be used with communication lines having no lightning proofness and running outside the limits of one building...
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Page 5: Table Of Contents
Content 1.INTRODUCTION ............................6 2. ADAPTER STRUCTURE ..........................7 3. CONNECTING ADAPTER PANEL ......................8 4. DEVICE CONFIGURATION ........................9 4.1. Mode Selection ..............................9 4.2. Watchdog Controller Clearing ........................... 11 4.3. Application Example ............................12 5. SCOPE OF SUPPLY ............................ 14... -
Page 6: Introduction
1.INTRODUCTION LAN adapter CR-505 is a single channel Ethernet adapter with one main port and one bypass port. Switching from the main port to the bypass port (bypass mode) is automated when the server power supply is off or watchdog controller reacts. Bypass port serves to connect a standby server. -
Page 7: Adapter Structure
2. ADAPTER STRUCTURE The adapter structure is shown in the picture. Watchdog Port 1 controller Port 0 RTL8111 MAC controller The device is based on MAC controller RTL8111, which port GBe is connected to the relay module. Depending on the mode, the relay module connects either the bypass port (port1) or the MAC controller to the main port (port 0). -
Page 8: Connecting Adapter Panel
3. CONNECTING ADAPTER BOARD Below you can find the front panel of adapter CR-505 and a port connection table. Bypass led Link/Act led Tx led PORT 1 PORT 0 Outputs Destinations Notes. 1. A,B,C,D – duplex twisted-pair wires 2. Standard 10/100 uses pair A for transmission and pair B for receipt 3. -
Page 9: Device Configuration
4. DEVICE CONFIGURATION 4.1. MODE SELECTION The mode is selected with the help of jumpers on board (see the picture). The mode dependence on jumpers position is shown in the table below. On – the jumper is closed, Off – the jumper is open, X – the position is ignored. - Page 10 Mode Bypass mode is on only if there is no power supply of the server. The jumper is precedent over the others. Watchdog controller clearing happens when any packet is transmitted (by Tx led signaling). Watchdog controller clearing happens when a record is made to MAC controller register.
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Page 11: Watchdog Controller Clearing
4.2. WATCHDOG CONTROLLER CLEARING According to the taken work model, the watchdog controller shall be cleared with the server software from time to time. This condition is a sign of the stable functioning of the software. Receiving periodically a clearing signal the watchdog controller views the software operation as normal and finds no need to switch the ports to the bypass mode. -
Page 12: Application Example
According to this scheme the primary server checks from time to time the connectivity to the standby server via LAN adapters #1 and #2. Adapter CR-505 is installed to the primary server and is connected to the standby server with a bypass port. If the connectivity is lost (or the software of... - Page 13 The standby server shall also have the exact copy of the primary server software; also, the same MAC address shall be set for adapter #3 and adapter CR-505. The given scheme provides for a “hot” backing up of the primary server. The administrator can be notified of the occurred server...
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Page 14: Scope Of Supply
5. SCOPE OF DELIVERY • Adapter board • CD with user’s manual • Certificate of warranty • Packing box sized 26x17x3 cm The set weight is not over 0.5 kg.