Juniper BX7000, Руководство по оборудованию, Страница: 29 / 138

Hardware Components 11
CHAPTER 1: BX7000 Multi-Access Gateway Overview
Console Ports
You can connect a console directly to the RJ-45 console port or to the USB 2.0 full-speed port of
the gateway. These two ports are labeled as CONSOLE (see Figure 7 on page 11).
Figure 7: Console Ports
z
RJ-45 console port to connect the gateway to the serial port (RS-232 Port/COM port) of the PC
having console terminal session. An RS-232 serial cable with an RJ-45 connector is required.
z
USB Type B console port to connect the gateway to the Type A USB port of the PC having
console terminal session. A standard USB cable with Type B connector is required.
Table 5: Optical Interface Support for Gigabit Ethernet SFPs
Parameter 1000Base-SX 1000Base-LX 1000Base-LH 1000Base-ZH
Optical interface Multimode Single-mode Single-mode Single-mode
Transceiver type SFP SFP SFP SFP
Standard IEEE 802.3—2005 IEEE 802.3—2005 Multivendor
agreement
Multivendor
agreement
Maximum distance 62.5/125 MMF
cable: 2 to 220 m
50/125 MMF cable:
2 to 550 m
62.5/125 MMF
cable: 2 to 550 m
50/125 MMF cable:
2 to 550 m
10/125 SMF cable:
0.002 to 5 km
9/125 SMF cable:
10 km
9/125 SMF cable:
70 km
Transmitter
wavelength
770 through
860 nm
1270 through
1355 nm
1300 nm 1550 nm
Average launch
power
–9.5 to less than 0
dBm
Max –3 dBm to
min –11.5 dBm
0 to 3 dBm –2 to 3 dBm
Average receive
power
Max 0 dBm Max –3 dBm –24 to –3 dBm –24 to –3 dBm
Receiver
saturation
0 dBm –3 dBm –3 dBm –3 dBm
Receiver sensitivity –17 dBm –19 dBm –24 dBm –24 dBm
RJ-45 console port
USB console port
g002941
Note: Although you can connect management devices to both console ports, only one console
port can be active at a time. If you connect to both the console ports, the USB console port will be
activated.