Product guide

Chapter 2: Hardware Components 2-2
Hardware Description
The Tenor BX is a stackable/rack mountable device which provides PSTN and PBX connections (through
BRI lines), as well as connections to the Ethernet LAN and a PC. The unit provides eight RJ-45 BRI S/T
ports in which you can connect to a PBX or the PSTN.
The unit’s front panel includes connection jacks, LEDs, a reset button, and a diagnostics option; the back
panel includes a power cord connection site, an on/off switch, and a label.
Front Panel Connections and Reset Options
Figure 2-1 Tenor BX Front Panel
• BRI Ports 1-8. One RJ-45 jack for each port supports a connection to a line side (PBX) or
other customer equipment via upstream BRI lines, or to the trunk side (PSTN) via downstream
BRI lines.
Each BRI line provides 2 B (Bearer) channels and 1 D (Data) signaling channel. All ports are
software configurable as TE or NT.
• Reset. Enables you to reset the system.
•Diag. Enables you to perform software diagnostic procedures.
• LAN 1/LAN2. 10/100 Base-T Ethernet ports. LAN 1 port provides an RJ-45 jack for an indi-
vidual connection to a 10/100 Ethernet LAN switch or hub via RJ-45 cable; it is individually
configured with a unique IP and MAC address. LAN2 Ethernet port is reserved for future use.
Figure 2-2 10/100 BASE-T Ethernet Port Pin Order
BRI Port
Reset
Diag
Console Port
LAN1/LAN2
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