High speed communication interface (65s only), Cabling, High speed communication interface – Visara 1174-65S User Manual
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Chapter 2. Installation
707020-002
9-Port CDA Board Connections
Figure 2-8 illustrates a 9-port CDA board. Ports 0 through 8 support direct attachment of
coax devices. Ports 0 and 8 also support attachment to a multiplexer.
Figure 2-8. 1174-90S Coax Ports (9-Port CDA)
Assigning Logical Ports
Logical ports are assigned in groups of eight devices. These groups are ports:
• 0 through 7
• 8 through 15
High Speed Communication Interface (65S only)
The High Speed Communications (HSC) board provides a high speed remote communications
interface to SDLC and Frame Relay Networks. Each HSC board provides up to four high
speed channels.
Cabling
The HSC feature includes an HSC Adapter Cable (HAC). One end attaches to the HSC
board, the other end splits into four connectors. Each connector provides a communication
line capable of operating at full-duplex speeds of up to 8 Mbps.
The physical layer interface type is selected using a physical layer interface module (PLIM)
and one of four HSC communication cables. The PLIM1 supports either RS232 or V.35
communication protocol, PLIM2 supports X.21 protocol. The type cable used determines the
protocol type. Any combination of PLIMs and/or cables may be connected to the HSC board.
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Note: The cable assemblies supplied for use with the HSC board and PLIMs are Visara
proprietary cables which may include EMI suppression components. For correct operation
and continued agency compliance do not substitute any other cables.