Transition Networks SM24-1000SFP-AH, Installation Manual

Page: 21 / 76

Description of Hardware
1-3
1
Note that 1000BASE-SX transceivers use multimode duplex fiber cable,
1000BASE-LX and 1000BASE-LH transceivers use single-mode duplex fiber cable,
and 1000BASE-BX10-U transceivers use single-mode simplex fiber cable.
XFP Slots
The switch includes two slots for 10 Gigabit Ethernet XFP compliant fiber-optic
transceivers, and two additional slots for optional XFP transceiver modules (shown
below). These fiber ports are designed for use as an uplink connection to the central
office, or as a downlink to another aggregation node. 10GBASE-SR transceivers
support short-haul connections of up to 300 meters, 10GBASE-LR transceivers
support runs up 10 kilometers, and 10GBASE-ER transceivers can run up to 40
kilometers, all using single-mode duplex cable.
Each port supports auto-negotiation of flow control, so the switch can automatically
prevent port buffers from becoming saturated.
Figure 1-2 Single-Port 10GBASE Module (XFP)
100BASE-TX Management Port
The 10/100BASE-TX port labeled “Craft” provides a dedicated management
interface which is segregated from the data traffic crossing the other ports.
This port supports auto-negotiation, so the optimum transmission mode (half or full
duplex) and data rate (10 or 100 Mbps) can be selected automatically, if this feature
is also supported by the attached device. However, note that the interface
connection parameters of this port cannot be configured.
Console Port
The console port on the switch’s front panel uses an RJ-45 jack with with serial
pinouts (see Table 3-1 on page 3-10) which enables a connection to a terminal for
performing switch monitoring and configuration functions. The terminal may be a PC
or workstation running terminal emulation software, or a terminal configured as a
Data Terminal Equipment (DTE) connection. A null-modem wired serial cable is
supplied with the switch for connecting to this interface.
Alarm Interface Port
The DB-15 alarm port on the switch’s front panel can be used to provide alarm,
service port, and BITS clock reference interfaces. The switch supports two sets of
L in k Act
/
1 Port 1 0 Gigabit X FP M o dul e
-
EM 4 6 2 6H X G X FP
- -