STAT-4, STAT-8, AND STAT-24
16
3.6.4 P
OWER
C
ONNECTION
The Stat-4, Stat-8, and Stat-24 have standard IEC three-prong connectors with an integral fuse.
3.7 Powering On the Mux
Connect the power cable between the AC mains connector on the rear panel and a standard grounded AC
outlet, then set the rear-panel POWER switch to On. The front-panel PWR indicator should light.
After you turn on the mux, the SYNC indicator should light. If the link to the far stat mux is still not
operational, the SYNC indicator will flash. Check that after a few seconds (during which the stat mux performs
a self-test), the ERR indicator goes out. For additional information on stat mux indicators, refer to
Chapter 4
.
3.8 Stat Mux Configuration Information
3.8.1 I
NTRODUCTION
The stat mux can operate in three modes:
1. Normal operation mode, described in detail in
Chapter 4
.
2. Parameter configuration mode. Allows user to set up parameters of local and remote stat mux units.
This mode provides two types of functions:
• Parameter-selection functions.
• System-management functions, used to save (store) selected parameters, transfer configurations
between the local and remote units, activate new configurations, and select passwords.
3. Diagnostics mode. Stat mux diagnostic functions include local and remote loops on each sub-channel and
on the composite channel, and modem loops (analog and optionally remote digital loopback). Refer to
Chapter 5
for additional details.
Activate the parameter configuration mode and the diagnostics mode from the command terminal, using the
stat mux configuration program. This paragraph outlines the configuration parameters available to you.
Section 3.9
provides step-by-step instructions on starting configuration and diagnostics sessions.
Section 3.10
provides in-depth information on each menu and the purpose of each parameter or diagnostics screen.
3.8.2 C
ONFIGURATION
I
NFORMATION
The stat mux has two types of configuration parameters:
1. System parameters, which affect both stat mux units connected in a link and also affect all their
sub-channels. Table 3-1 lists system parameters.
2. Sub-channel parameters, which affect only the operation of a single sub-channel. Table 3-2 lists
sub-channel parameters.
