2
Agency Approvals —
FCC Part 15,
Class A, UL and CUL
Clocking —
Loop (slaved to network
received clock); Local (private
network master)
Diagnostics —
DS3 Network: ANSI
T1.107 compatible loopbacks;
Line, payload and line with
BERT loopbacks;
DTE Ports: network, local DTE,
and remote DTE with BERT
loopbacks;
HSSI only: DTE device loopback
Framing Format —
M13 and C-bit
parity
SNMP/Telnet —
Via SLIP, PPP or
10BASE-T: MIB II, RFC 1213 &
1407 compliant; Optional MIB for
extended monitoring and DSU
control/configuration (contact
Technical Support).
Speed —
V.35 ports: 75 kbps to
10.5 Mbps;
HSSI ports: 75 kbps to 44.2 Mbps
Interface —
Network: ClearChannel™, non-
channelized DS3;
DTE: (1) integrated HSSI port,
optional V.35 modules;
VT100 Terminal: 8-pin modular,
RS-232 (DB25) adapter
provided
Connectors —
Alarm Connector:
(1) 3-screw terminal block;
Auxiliary: (1) RJ-45, rear;
Control: (1) RJ-45, front;
HSSI: (1) SCSI-2 50-pin female;
LAN: (1) 8-pin RJ-45 modular;
DS3: (2) BNC coax, female;
Modules: V.35: (1) M34;
HSSI: (1) SCSI-2 50-pin female
Indicators —
LEDs: (1) Remote
active; Network port: In Service,
In Test, Alarm, LOS; DTE ports,
(1) per port: Status, In Test, TX,
RX
Temperature Tolerance —
Operating: 32 to 122°F (0 to 50°C);
Storage: -4 to +158°F (-20 to
+70°C)
Humidity Tolerance —
Up to 95%,
non-condensing
Power —
120 VAC, 9W
Size —
1.7"H x 17"W x 11.6"D
(4.3 x 43.2 x 29.5 cm)
Weight —
7 lb. (3.2 kg)
Share the cost of a T3 line between multiple applications.
Specifications
Ordering Information
ITEM
CODE
T3 Multiplexor, 4-Port ................................................MT185A
✦
Includes (1) RJ-45 modular cable, (1) RJ-45 modular
to DB25 female adapter, and mounting ears for rack
installation.
Modules
V.35 .............................................................................MT186C
HSSI ...........................................................................MT187C
You might also need cable…
V.35 Interface Cable, Male/Male,
6-ft. (1.8-m) .............................................EYN450-0006-MM
Coax Cable, RG59 PVC, 6-ft. (1.8-m) ......ETN59-0006-BNC
T3 Multiplexor
(MT185A)
T3 Multiplexor
(MT185A)
T3
Router
PCs
SNMP
Management
Station
Front-End
Processor
Front-End
Processor
Video
Codec
Video
Codec
PCs
PCs
PCs
Router
Router
Router
10BASE-T Hub
10BASE-T
Hub
10BASE-T
Hub
10BASE-T Hub
