Bri-St Digital Line Card - 3Com 3C10111C - NBX 100 - Modular Exp Base Installation Manual

BRI-ST Digital Line
Card
Figure 12 BRI-ST Digital Line Card (3C10164C)
D
B1
1
B2
3C10164C 3Com NBX Quad BRI-S/T Card
Rapid blink — Data is passing into or out of the card through the
10/100 Uplink port.
10/100 Uplink — This RJ-45 Ethernet connector connects the E1 card
■
to an external LAN hub or switch. You can use this connector to
isolate E1 traffic. If the E1 Digital Line Card is used in an NBX Gateway
Chassis, you do not need to use this connector because the NBX
Gateway chassis is connected to the LAN.
Console — This DB-9 connector provides an RS-232 (DCE) TTY
■
terminal connection for maintenance access.
If you require an alternative (bare wire-end) cable to use with the ISDN
PRI Digital Line Card, contact your 3Com NBX Voice-Authorized Partner.
CAUTION: This equipment does not operate when the main power fails.
The ISDN BRI-ST (Basic Rate Interface) Digital Line Card
four separate ports, each of which accommodates two B channels and
one D channel. Each B channel carries user data at 64 Kbps and the
D channel operates at 16 Kbps. If the two B channels are bonded, the
transmission rate is 128 Kbps.
D
B1
2
B2
CAUTION: The BRI-ST Digital Line Cards are not approved for use in the
United States or Canada.
Status Lights — Each port has three status lights (listed top to
■
bottom):
D — Lights when this signaling channel is active.
■
B1 — Lights when this data channel is active (a call is in progress).
■
B2 — Lights when this data channel is active (a call is in progress).
■
Console — This DB-9 connector provides an RS-232 (DCE) TTY
■
terminal connection for maintenance access.
CAUTION: This equipment does not operate when the main power fails.
Overview of NBX Cards and Devices
D
B1
4
3
B2
(Figure 12) has
CONSOLE
D
B1
B2
37