Verilink PRISM 3060-10 (34-00252.4) Product Manual - Manual (Page 61)

Configuration Screens 53
Zero Suppression
Determines whether ones density insertion is activated after 15 zeros (rather than
175 zeros). The choices are ENABLE and DISABLE.
T1 -NET Timing
Sets the timing source to synchronize the unit’s internal timing generators. In all
cases, slips are controlled to occur on frame boundaries at the network and/or
DSX1 ports when timing synchronization is lost.
NETWORK. Timing is derived from the network recovered clock (most applications
use this selection).
STATION. Timing is derived from a bipolar- or TTL-compatible clock supplied to
the unit at the rear panel STA CLK connector. When this mode is selected, the
timing rate must also be set from Station Timing.
INTERNAL. The unit’s internal frequency standard is used for all timing.
SLOT, DSU, and PORT. Timing is synchronized to the external terminal timing
clock supplied from the DTE and connected to the selected slot, DSU, and port.
Station Timing
Selects the input timing and only appears when Station is selected from the
T1 -NET Timing menu. The choices are N
×
56 K, N
×
64 K, and 1.544 MHz. A
number appears to the right of this field when N
×
56K or N
×
64 K is selected to
indicate the rate multiplier. A value from 1 through 24 must be entered.