Preparing for Installation
Table 6: RSP/RP AUX Port Signals
AUX Port
Pin
1
2
3
4
5
6
7
8
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
This table lists the signals used on the Management LAN ports.
Table 7: RSP/RP Management LAN Port Signals
MGT LAN Port
Pin
1
2
3
4
Signal
Input/Output
RTS
Output
DTR
Output
TxD
Output
GND
—
GND
—
RxD
Input
DSR
Input
CTS
Input
disabled.
100Base-TX Signal
Transmit+
Transmit–
Receive+
Unused
Cisco ASR 9000 Series Aggregation Services Router Hardware Installation Guide
Description
Request to send
Data terminal ready
Transmit data
Signal ground
Signal ground
Receive data
Data set ready
Clear to send
1000Base-T Signal
BI_DA+
BI_DA–
BI_DB+
BI_DC+
Management LAN Ports Connection Guidelines
49