Auxiliary Port Signals; Management Lan Ports Connection Guidelines - Cisco ASR 9000 Series Installation Manual

RSP and RP Port Connection Guidelines

Auxiliary Port Signals

The Auxiliary (AUX) port is an RJ-45 interface for connecting a modem or other data communication
equipment (DCE) device (such as another router) to the RSP/RP. The AUX port supports hardware flow
control and modem control.
Table 1-6
Table 1-6
AUX Port Pin

Management LAN Ports Connection Guidelines

The RSP/RP has two RJ-45 media-dependent interface (MDI) Ethernet management LAN ports: MGT
LAN 0 and MGT LAN 1 (see
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:
•
•
•
•
Table 1-7
Table 1-7
MGT LAN Port Pin
Cisco ASR 9000 Series Aggregation Services Router Hardware Installation Guide
1-56
lists the signals used on the Auxiliary port.
RSP/RP AUX Port Signals
Signal
1 RTS
2 DTR
3 TxD
4 GND
5 GND
6 RxD
7 DSR
8 CTS
Figure
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.
lists the signals used on the Management LAN ports.
RSP/RP Management LAN Port Signals
100Base-TX Signal
1 Transmit+
2 Transmit–
3 Receive+
Input/Output Description
Output Request to send
Output Data terminal ready
Output Transmit data
— Signal ground
— Signal ground
Input Receive data
Input Data set ready
Input Clear to send
1-63).
1000Base-T Signal
BI_DA+
BI_DA–
BI_DB+
Chapter 1 Preparing for Installation