4
S4TEF10xx-10x
.
Installation
-- Continued
Switch Set #1 - T1/E1 Options
5, 6, 7, 8 - Loop-Back Settings
The loop-back setting is used for installation and network debugging procedures.
Each of the T1/E1 ports can be individually set for loop-back mode:
• Switch 5 controls T1/E1 port 1 • Switch 6 controls T1/E1 port 2
• Switch 7 controls T1/E1 port 3 • Switch 8 controls T1/E1 port 4
When the loop-back switch for a particular T1/E1 port is enabled, the port loops
the signal from the receive port back to the transmit port. The loop-back test
scenarios are described in detail on page 16.
Disable Loop-Back on T1/E1 port 1
Enable Loop-Back on T1/E1 port 1
up
5
down
Disable Loop-Back on T1/E1 port 2
Enable Loop Back on T1/E1 port 2
6
up
down
up
down
Disable Loop-Back on T1/E1 port 3
Enable Loop-Back on T1/E1 port 3
7
up
down
Disable Loop-Back on T1/E1 port 4
Enable Loop-Back on T1/E1 port 4
8
9 - Transmit AIS
up - Enables the transmit AIS (Alarm Indication
Signal) on loss of the carrier signal. This function
is un-framed and applies to ALL channels, both
copper and fiber.
down - Disables the transmit AIS function.
10 - RS-232 Port Mode
up - Data port mode (normal operation).
Transmits data to a desk top computer or other
data collection device
down - Local (auxiliary) management mode. See
the SNMP section (page 11) for the commands
that are supported via the RS-232 connector.
up
down
Enable
Disable
9
up
down
Data port mode
Local management mode
10
5
.
Installation
-- Continued
Switch Set #2 - Serial Options
1, 2, 3 - Serial Connection Speed Line Settings
Switches 1, 2, and 3 on switch set #2 are used to set the serial connection speed.
4800 baud
9600 baud
1200 baud
2400 baud
1 2 3
57600 baud
115200 baud
19200 baud
38400 baud
1 2 3
4. Enable / Disable Parity
When parity is enabled, an additional bit is added to
the 8-bit signal to identify whether the signal is sent
successfully. Use switch 5 to send odd or even
signal parity.
up - Enable parity.
down - Disable parity.
5. Parity Select
up - Select odd serial parity.
down - Select even serial parity.
This switch is inactive if switch 4 is disabled (down).
Enable Parity
Disable Parity
down
up
4
Odd Serial Parity
Even Serial Parity
up
5
down
