Specifications

Configuring E1 R2 Signaling
Cisco AS5300 Universal Access Server Software Configuration Guide
3-20
Tips
If the connection does not go up, check the following:
• Loose wires, splices, connectors, shorts, bridge taps, and grounds
• Backwards transmit and receive
• Mismatched framing types (for example, CRC-4 verses no-CRC-4)
• Transmit and receive pair separation (crosstalk)
• Faulty line cards or repeaters
• Noisy lines (for example, power and crosstalk)
If you see errors on the line or the line is going up and down, check the following:
• Mismatched line codes (HDB3 vs. AMI)
• Receive level
• Frame slips because of poor clocking plan
If you are still having trouble, enable the modem management Call Switching Module (CSM) debug
mode using the debug modem csm command. This is the output of debug modem csm for an
incoming call:
5300# debug modem csm 1/0
*May 15 04:05:46.675: VDEV_ALLOCATE: slot 2 and port 39 is allocated.
*May 15 04:05:46.675: CSM_RX_CAS_EVENT_FROM_NEAT:(04BF): EVENT_CALL_DIAL_IN at slot 2
and port 39
*May 15 04:05:46.675: CSM_PROC_IDLE: CSM_EVENT_DSX0_CALL at slot 2, port 39
*May 15 04:05:46.675: Mica Modem(2/39): Configure(0x0)
*May 15 04:05:46.675: Mica Modem(2/39): Configure(0x3)
*May 15 04:05:46.675: Mica Modem(2/39): Configure(0x6)
*May 15 04:05:46.675: Mica Modem(2/39): Call Setup
*May 15 04:05:46.891: Mica Modem(2/39): State Transition to Call Setup
*May 15 04:05:46.891: Mica Modem(2/39): Went offhook
*May 15 04:05:46.891: CSM_PROC_IC1_RING: CSM_EVENT_MODEM_OFFHOOK at slot 2, port 39
.
.
.
When the E1 controller comes up, you will see the following messages:
%CONTROLLER-3-UPDOWN: Controller E1 0, changed state to up
It also shows these messages for individual timeslots:
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 1 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 2 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 3 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 4 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 5 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 6 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 7 is up
%DSX0-5-RBSLINEUP: RBS of controller 1 timeslot 8 is up