Download MIL-STD-187

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MIL-STD-187-31O
f.
Use of an E&M interface between the switch and the supervision
unit on AUTOVON interswitch trunks , AUTOVON PBX access lines,
and subscriber access lines versus the SF supervision technique.
g.
Capability for employing a loop extension method to meet DCS
loop length distributions.
h.
Ability to perform A/D conversions with satisfactory performance must be evaluated and related to the operational deployment concepts, to include the impact of AID conversion for
conferencing and for bit rate or A/D method compatibility.
i.
Capability of the switch to meet required COMSEC doctrine for
long haul/tactical applications.
j.
Capability of the switch to meet HSMP protection requirements.
k.
Capability of
digital DCS by
(SDMX) modules
out taking the
downtime.
1.
Capability of Interoperation between a 16 kb/s DCS 11’C-39and
a 32 kb/s tactical TTC-3$. Included is the problem of
transit ioning to a lower rate DCS switch.
m.
Development of AN/lTC-39-compatible DCS system control
elements.
n.
Capability of the AN/lTC-39 TDMX to interface with DCS
terrestrial and DSCS transmission facilities; also, the
capability of the switch to synchronize with digital channels
or trunk groups derived via DSCS.
0.
Capability of the switch to provide for additional DCS requirements for zone restrictions.
P.
Identification of additional changes required for Phase 11,
Secure Voice applications .
the switch to accommodate transition to an allpermitting replacement of Space Division Matrix
with Time Division Matrix (TDMX) modules withswitch out of service, for with a minimum of
0’
‘4- Des Ign of the interface between CONUS and overseas in the
areas of bit rates , signaling, A/D techniques, electronic key
distribution, and conferencing.
6-7-2
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