Cisco ASR 9001 Installation Guide

Table 6: RSP/RP AUX Port Signals
DescriptionInput/OutputSignalAUX Port
Pin
Request to sendOutputRTS1
Data terminal readyOutputDTR2
Transmit dataOutputTxD3
Signal ground—GND4
Signal ground—GND5
Receive dataInputRxD6
Data set readyInputDSR7
Clear to sendInputCTS8
Management LAN Ports Connection Guidelines
Each RSP/RP card has two RJ-45 media-dependent interface (MDI) Ethernet management LAN ports: MGT
LAN 0 and MGT LAN 1. These ports are used for IEEE 802.3u 100BASE-TX (100 Mbps), or 1000BASE-T
(1000 Mbps) Ethernet connections. .
The transmission speed of the management LAN ports is not user-configurable. The transmission speed is set
through an autosensing scheme on the RSP/RP; the speed is determined by the network that the Ethernet port
is connected to. The combined total input rate of both MGT LAN 0 and MGT LAN 1 is about 12 Mbps.
Management port characteristics are:
• Maximum transmission unit (MTU) is fixed at 1514 and cannot be configured.
• Flow control is disabled and cannot be configured.
• Input unicast packets with an unknown destination address are filtered and dropped.
• Autonegotiation of port speed (100/1000) and duplex (full/half) is supported. Autonegotiation cannot be
disabled.
This table lists the signals used on the Management LAN ports.
Table 7: RSP/RP Management LAN Port Signals
1000Base-T Signal100Base-TX SignalMGT LAN Port
Pin
BI_DA+Transmit+1
BI_DA–Transmit–2
BI_DB+Receive+3
BI_DC+Unused4
Cisco ASR 9000 Series Aggregation Services Router Hardware Installation Guide
49
Preparing for Installation
Management LAN Ports Connection Guidelines

Cisco ASR 9001 Specifications

General

Brand	Cisco
Model	ASR 9001
Category	Network Router
Language	English