4230-mmm & 4230-mmx.ib.rev4.doc
Page 4 of 17
17/10/2007
Technical Specifications
MMM-4230:
Inputs:
Type 1
4 x ASI-C 75
Ω
, 800 mVp-p, BNC connector.
Maximum Data Rate
40.1 Mb/s (for 188 byte packet),
43.5 Mb/s (for 204 byte packet).
Channel Data Rate Assignments
I/P1
I/P2
I/P3 I/P4 (Mb/s)
(for 188 byte packet length signals)
40 +
0 + 0
+ 0
35 + 5 + 0 + 0
30 + 10 + 0 + 0
25 + 15 + 0 + 0
20 + 20 + 0 + 0
30 + 5 + 5 + 0
25 + 10 + 5 + 0
20 + 15 + 5 + 0
20
+
10
+
10
+
0
13.5
+
13.5
+13.5
+
0
Variable
20 + 10 + 5 + 5
15 + 15 + 5 + 5
15
+
10
+
10
+
5
10 + 10 + 10 + 10
Type 2
RS422 9600 Baud Uni directional.
Output:
Type
1 x G.703, 75
Ω
BNC connector.
Electrical Characteristics
B3ZS encoded.
Data Rate
44.736 Mb/s.
Alarm Output:
Contact closure on error, loss of power.
MMX-4230:
Input:
Type
1 x G.703, 75
Ω
BNC connector.
Electrical Characteristics
B3ZS encoded.
Data Rate
44.736 Mb/s.
Outputs:
Type 1
4 x ASI-C 75
Ω
, 800 mVp-p, BNC connector.
Data Rate
same as MMM-4230 input rate.
Type 2
RS-422 9600 Baud Uni directional.
Alarm Output:
Contact closure on loss of G.703 input, loss of power.
Power Requirements
28 Vac CT (14-0-14) or
±
16 Vdc.
Power consumption
6.5 VA.
Other
Temperature range
0 - 50° C ambient.
Mechanical
Suitable for mounting in IRT 19" rack chassis with input, output and power
connections on the rear panel.
Finish
Front panel
Grey, silk-screened black lettering & red IRT logo.
Rear assembly
Detachable silk-screened PCB with direct mount connectors to Eurocard and
external signals.
Dimensions
6 HP x 3 U x 220 mm IRT Eurocard.
Optional Accessories
SNMP plug-in module for use with 4000 series frame fitted with SNMP
“Agent”.
NOTE:
Also available in a 34 Mb/s G.703 version.
Due to our policy of continuing development, these specifications are subject to change without notice.
