Bank Controller Unit (1200373L1 And 1200373L2); Table 1. Bcu Faceplate Leds; Table 2. Bcu Dip-Switch S1 Options - ADTRAN Total Access 850 System Manual

Section 2 Engineering Guidelines

Bank Controller Unit (1200373L1 and 1200373L2)

The following is operational information pertaining to the Bank Controller Unit when used with the
Total Access 850 system.
Faceplate LEDs
The faceplate Network LEDs labeled
using a color coded message format. Table 1 gives a description of all faceplate LEDs for the BCU when
used with the Total Access 850 system.
For these LEDs...
Network/Frac T1
DIP-Switch Settings
The Total Access 850 BCU can be provisioned from DIP-switches (S1) mounted on the PCB, or through
screen menus accessed via the faceplate
loopback options are found on the DIP-switch panel. Table 2 gives DIP-switch provisioning information.
DIP-switch S1 must be provisioned without the BCU in the chassis. Once the BCU is installed, any software
provisioning made will override the DIP-switch settings. If the BCU is withdrawn and reinserted
(power-cycled), the software options remain in effect. If a DIP-switch setting is changed while the BCU is
withdrawn, the new DIP-switch setting takes effect. If none of the DIP-switch settings were changed, the
unit will be provisioned for the last software settings.
Switch Function
S1-1 Framing Format
26
T1 NETWORK

Table 1. BCU Faceplate LEDs

This color light... Indicates that...
OFF there is no power to the system.
RED the unit is in Red Alarm (meaning the T1 is down, not
connected, or framing is improperly configured).
YELLOW the unit is receiving Yellow Alarm (meaning the far end
unit is in Red Alarm).
Solid GREEN the unit is functioning normally.
Blinking GREEN the network T1 interface is in Test mode.
ADMIN interface. Basic T1 provisioning, clock source, and CSU

Table 2. BCU DIP-Switch S1 Options

Description
Enables either Extended Superframe Format (ESF) or
Superframe Format (SF). This option must be configured
identically with all other T1 network equipment on this circuit.
ON*
OFF
© 2004 ADTRAN, Inc.
Total Access 850 System Manual
and T1 FRACTIONAL provide status information
SF
ESF
64203376L1-1B