ATLAS 550 System Manual Section 4, User Interface Guide
61200305L1-1F © 2002 ADTRAN, Inc. 115
information.
MODULES (E1/PRA-1) > CONFIGURATION > TS16 SPARE
Write security: 3; Read security: 5
TS16 in CAS frame 0 contains 3 spare bits: 0000XYXX where ‘X’ marks a spare bit and ‘Y’ marks an
alarm indications to the remote end. Enter a decimal number whose masked 4 LSB (least significant bits)
are inserted into TS0 in CAS frame 0. Refer to CCITT G.704 for more information.
MODULES (E1/PRA-1) > CONFIGURATION > INTL BIT
Write security: 3; Read security: 5
Bit 0 in all non-CRC4 frames is reserved for international use. They may be used nationally if the path
does not cross an international border. If not specifically used, the bits should be set to ‘1’ on paths
crossing a border. Enter the international bit value of 0 or 1. Refer to CCITT G.704 for more information.
MODULES (E1/PRA-1) > CONFIGURATION > LINE BUILD OUT
Write security: 3; Read security: 5
Sets the line build out for the E1 interface to either 75 Ω (BALANCED or UNBALANCED) or 120 Ω (BALANCED
or UNBALANCED).
MODULES (E1/PRA-1) > TEST
Write security: 5; Read security: 5
These options initiate different types of tests and display test results.
MODULES (E1/PRA-1) > TEST > PRT
Write security: 4; Read security: 5
Displays the port number.
MODULES (E1/PRA-1) > TEST > LOC LB
Write security: 4; Read security: 5
Causes loopback on near-end (local) port (see Figure 10). The following options are available:
NONE No loopback active
LINE Metallic loopback