Verilink 9000 Series (34-00271) Product Manual - Manual (Page 49)

9111 Connections 27
9111 Port 1
T1 Option
Testing
CSU Line Loop
The CSU line loopback is activated by receiving a 1.544 Mbps signal, consisting of
a repeating one in five (00001) pattern with arbitrary 0s or 1s in every 193rd bit
position overwriting the pattern. This loopback is deactived by receiving a 1.544
MBPS signal, consisting of a repeating one in three (001) pattern with arbitrary
values every 193rd bit position overwriting the pattern. Figure 2-6 shows the line
loop.
9111
Port 1
DDS Option
This section describes the 9111 Internal DDS Card. The card is a one-port DDS-I
interface card for the 9111 MultiPro series unit. The module has an RJ-48
connector and is located above the supervisory port as shown in Figure 2-7. The
internal DDS card is configured by positioning SW1 located on the rear panel.
Clocking is supplied from the network.
Switch SW1
Switch SW1 is a 2-position switch located on the rear panel of the 9111 used to set
the channel bit rate per DDS-I.
DDS Network Connection
The network DDS facility interface is an RJ-48C with the pinout shown in
Table 2-12..
DTE NET
* Signal regeneration only
*
CSU Line Loop (In-band LLB)
Figure 2-6 CSU Line Loop
PWR
RESET
ETHERNET
SUPERVISORY
56Kbps 64Kbps
SW1
DDS
PORT 2 PORT 3 PORT 4
TXD RXD LINK COL
Figure 2-7 9111 with Port 1 DDS Option
Table 2-12 DDS Connector Pinout
Pin Signal
1 Network Transmit Out
2 Network Transmit Out
3-6 not used
7 Network Data In
8 Network Data In