Verilink PRISM 3060-10 (34-00252.4) Product Manual - Manual (Page 19)

Network Management 11
The unit also accepts any unframed all-ones bipolar RTZ signal with a level of 1.5
to 4 volts peak and a frequency of 1.544 MHz or any multiple of 56 or 64 kHz. An
RS423-compatible station clock input, with the same range of input frequencies, is
also available as an option.
The station timing is configured through the front panel (see Station Timing on
page 20) or through the terminal interface (see Station Timing on page 53). The
pinout of the 6-pin modular jack is shown in the following table.
Network
Management The unit is fully compatible with the TXPORT 8100A Site Manager. The 8100A
software system can manage small to large networks of network access products.
NMS Connection The two 6 -pin modular connectors labeled NMS IN and NMS OUT on the rear
panel may be used for connection to the 8100A. These ports allow the connection
of multiple collocated units in a daisy-chain IN/OUT bus arrangement as shown in
Figure 2-3. The OUT port of one element is connected to the IN port of the next
element, and so on, to form a complete chain among the group of elements.
All units on the same NMS chain must use the same NMS bit rate.
The NMS IN connector provides both the transmit and receive signal pair. This
port may be used for a modem connection or as a VT100 terminal interface (see
System Description on page 35).
Table 2-4 TTL and Bipolar External Clock Connector Pinout
Pin TTL Signal Bipolar Signal
1, 6 Ground Ground
2, 5 not used not used
3 TTL Clock Balanced Tip
4 Ground Balanced Ring
IN OUT NMS
IN OUT NMS
Element
Element
OUT IN NMS 8100A
IN OUT NMS Last
Figure 2-3 NMS Daisy-Chain Arrangement