C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
©2006 ADTRAN, Inc.
All Rights Reserved.
Warranty: ADTRAN will replace or repair this product within the warranty period if it does not meet its published specifications or fails
while in service. Warranty information can be found online at www.adtran.com/warranty
.
MX2820
19-Inch
Chassis
P/N: 1186001E1
CLEI: M3M1R00B_ _
NOTE: PWR = Respective –48 VDC or ±24 VDC source, RET = respective return
13. Insert the appropriate fuses into the fuse panel.
14. Using a voltmeter, verify that the operating voltage is within specifications for A and B power.
15. Remove appropriate fuses from panel and replace the metal cover that was removed in step 5.
16. Insert appropriate fuses into panel, and if not done in step 2, attach cable tie bar.
17. Connect 10/100Base-T Ethernet and NTWK MGMT X.25 interfaces.
18. Route DSX-3 coax and tie to upper tie bar.
19. Route DSX-1 IN cables below upper tie bar and tie to upper tie bar.
20. Route DSX-1 OUT cables beneath lower tie bar and tie to lower tie bar.
OPERATIONAL SPECIFICATIONS
COMPLIANCE
The MX2820 Chassis complies with UL 60950, NEBS Level 3, and GR-1089-CORE. The MX2820 Chassis is
intended for installation in Restricted Access Areas only. The MX2820 Chassis meets the EU’s RoHS Directive
2002/95/EC and/or applicable exemptions. See www.adtran.com
for further information on RoHS/WEEE.
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.
Changes or modifications not expressly approved by ADTRAN could void the user’s authority to operate this
equipment.
CAUTION: The DSX-1, DSX-3, and 10/100Base-T Ethernet circuits are not to be connected to outside plant
facilities.
Specification Description
Operating Voltage –48 VDC Systems: –42 VDC to –56 VDC
–24 VDC Systems: –22 VDC to –27 VDC
+24 VDC Systems: +22 VDC to +27 VDC
Operating Temperature: –40ºC to +50ºC without fans
–40ºC to +65ºC with fans
Storage Temperature –40ºC to +85ºC (Relative humidity to 95 percent, noncondensing)
Code Input Output
Power Code (PC) F C
Telecommunication Code (TC) – –
Installation Code (IC) A –
DESCRIPTION
The MX2820 19-Inch Chassis (P/N 1186001E1) houses multiple M13 multiplexers that consolidate T1/E1 signals
into T3 circuits. The Chassis houses seven redundant M13 multiplexers. The Chassis also houses a single System
Controller Unit (SCU) that provides management capabilities to the MX2820 system.
Features of the MX2820 system include the following:
♦ 1-to-1 redundancy
♦ Hot-swappable MUX cards
♦ Embedded SNMP and Telnet management
♦ Simplified configuration through the VT100 terminal menu structure
♦ Meets the requirements for NEBS Level 3 compliance
TURN-UP STEPS
After unpacking the unit, inspect it for damage. If damage is noted, file a claim with the carrier and then contact
ADTRAN. For more information, refer to the warranty.
1. Attach mounting ears.
2. Attach cable tie bar, if necessary.
3. Mount chassis in rack.
WARNING: Care should be taken not to upset the stability of the equipment rack.
4. Remove appropriate fuses from fuse panel.
5. Remove metal cover from the right side of the back panel.
NOTE: Silk-screen on the metal cover references the following connections.
6. Wire wrap
CHN posts and MIN alarm relay posts and then route the wire downward.
7. If STS-1, wire wrap
CLKB and CLKA posts and then route the wire downward.
8. Wire wrap
ACO posts and then route the wire downward.
9. Wire wrap
AUX1, AUX2, and AUX3 alarm input posts and then route the wire downward.
10. Wire wrap
MAJ and CRIT alarm posts and then route the wire downward.
11. Connect the frame ground on the barrier strip.
CAUTION: Per GR-1089-CORE October 2002, Section 9, MX2820 system is designed and intended only for
installation in a DC-C (common) bonding and grounding system. The chassis ground wire must be of
equal or greater ampacity than the wire connected to the VDC return. The MX2820 system is not
intended or designed for installation in a DC-I (isolated) bonding and grounding system.
NOTE: A readily accessible disconnect device, such as a rackmount fuse and alarm panel that is suitably approved
and rated should be incorporated in the fixed wiring.
NOTE: Connect to a reliably, grounded VDC source, which is electrically isolated from the AC source.
12. Connect
RET B, PWR B, RET A, and PWR A on the barrier strip.
61186001E1-22C
0612
MX2820
19-Inch Chassis
*61186001E1-22C*
C
R
A
F
T
1186003
SCU
ACO
ALM
ACT
1186002
MUX
ALM
ACT
TEST
STAT
TEST
STAT
DS1
DS3
1A
CLKB
CLK A
1186002
MUX
ALM
ACT
TEST
STAT
TEST
STAT
DS1
DS3
1B
1186002
MUX
ALM
ACT
TEST
STAT
TEST
STAT
DS1
DS3
2A
1186002
MUX
ALM
ACT
TEST
STAT
TEST
STAT
DS1
DS3
2B
1186002
MUX
ALM
ACT
TEST
STAT
TEST
STAT
DS1
DS3
3A
1186002
MUX
ALM
ACT
TEST
STAT
TEST
STAT
DS1
DS3
3B
1186002
MUX
ALM
ACT
TEST
STAT
TEST
STAT
DS1
DS3
4A
1186002
MUX
ALM
ACT
TEST
STAT
TEST
STAT
DS1
DS3
4B
1186002
MUX
ALM
ACT
TEST
STAT
TEST
STAT
DS1
DS3
5A
1186002
MUX
ALM
ACT
TEST
STAT
TEST
STAT
DS1
DS3
5B
1186002
MUX
ALM
ACT
TEST
STAT
TEST
STAT
DS1
DS3
6A
1186002
MUX
ALM
ACT
TEST
STAT
TEST
STAT
DS1
DS3
6B
1186002
MUX
ALM
ACT
TEST
STAT
TEST
STAT
DS1
DS3
7A
1186002
MUX
ALM
ACT
TEST
STAT
TEST
STAT
DS1
DS3
7B
1186011
CLK
1186011
CLK
MX 2820
1186001L1
PRICING AND AVAILABILITY 800.827.0807
TECH SUPPORT 800.726.8663
RETURN FOR REPAIR 256.963.8722
www.adtran.com
61186001E1-22C
AMP CHAMP PINOUT FOR ALL FUTURE BUS TO AMP CABLE ASSEMBLIES
CONDUCTOR COLOR CODE FOR ALL FUTURE BUS TO STUB CABLE ASSEMBLIES
Note: Bold indicates blue binder group. Pairs 1–25 do not use a binder.
Pin Function Pin Pin Function Pin
1 Ring 1 Tip 1 33 17 Ring 17 Tip 17 49
2 Ring 2 Tip 2 34 18 Ring 18 Tip 18 50
3 Ring 3 Tip 3 35 19 Ring 19 Tip 19 51
4 Ring 4 Tip 4 36 20 Ring 20 Tip 20 52
5 Ring 5 Tip 5 37 21 Ring 21 Tip 21 53
6 Ring 6 Tip 6 38 22 Ring 22 Tip 22 54
7 Ring 7 Tip 7 39 23 Ring 23 Tip 23 55
8 Ring 8 Tip 8 40 24 Ring 24 Tip 24 56
9 Ring 9 Tip 9 41 25 Ring 25 Tip 25 57
10 Ring 10 Tip 10 42 26 Ring 26 Tip 26 58
11 Ring 11 Tip 11 43 27 Ring 27 Tip 27 59
12 Ring 12 Tip 12 44 28 Ring 28 Tip 28 60
13 Ring 13 Tip 13 45 29 61
14 Ring 14 Tip 14 46 30 62
15 Ring 15 Tip 15 47 31 63
16 Ring 16 Tip 16 48 32 FGND 64
Pair # Wire Color - Tip Wire Color - Ring Pair # Wire Color - Tip Wire Color - Ring
1 White/Blue Blue/White 15 Black/Slate Slate/Black
2 White/Orange Orange/White 16 Yellow/Blue Blue/Yellow
3 White/Green Green/White 17 Yellow/Orange Orange/Yellow
4 White/Brown Brown/White 18 Yellow/Green Green/Yellow
5 White/Slate Slate/White 19 Yellow/Brown Brown/Yellow
6 Red/Blue Blue/Red 20 Yellow/Slate Slate/Yellow
7 Red/Orange Orange/Red 21 Violet/Blue Blue/Violet
8 Red/Green Green/Red 22 Violet/Orange Orange/Violet
9 Red/Brown Brown/Red 23 Violet/Green Green/Violet
10 Red/Slate Slate/Red 24 Violet/Brown Brown/Violet
11 Black/Blue Blue/Black 25 Violet/Slate Slate/Violet
12 Black/Orange Orange/Black 26 White/Blue Blue/White
13 Black/Green Green/Black 27 White/Orange Orange/White
14 Black/Brown Brown/Black 28 White/Green Green/White
MX2820 CABLE ASSEMBLY INSERTION ORIENTATION
When facing the backplane, the black locking tab or locking screw should be facing to the left as the connector is
inserted into the backplane.
Cable Part Numbers
DSX-1 Patch Cable Description Future Bus with Locking Tab Future Bus with Locking Screw
3 feet Future Bus to Female 64-Pin Amp 1186020L1 1186020L2
6 feet Future Bus to Male 64-Pin Amp 1186021L1 1186021L2
15 feet Future Bus to Female 64-Pin Amp 1186022L1 1186022L2
25 feet Future Bus to Stub 1186025L1 1186025L2
50 feet Future Bus to Stub 1186050L1 1186050L2
100 feet Future Bus to Stub 1186100L1 1186100L2
150 feet Future Bus to Stub 1186150L1 1186150L2
6 OUT
(T1/R1)
6 OUT
(T1/R1)
MX2820
19-Inch Chassis
USE COPPER
CONDUCTORS ONLY
USE COPPER
CONDUCTORS ONLY
-48V , 3.75A
7
DSX-3
OUTIN
6
DSX-3
OUTIN
5
DSX-3
OUTIN
4
DSX-3
OUTIN
3
DSX-3
OUTIN
2
DSX-3
OUTIN
1
DSX-3
OUTIN
R8
R7
R6
R5
P4
P6
N
C
C
N
O
C
N
O
M
I
N
N
C
C
N
O
+
–
N
H
C
T
R
S
T
R
S
A
U
X
1
A
U
X
2
A
U
X
3
A
C
O
P
W
R
A
R
E
T
A
P
W
R
B
R
E
T
B
J2
J1
TB1
CLKB
R4
R10
R1
D1
R2R9
R3
D4
D3
D2
7 OUT
(T1/R1)
6 OUT
(T1/R1)
5 OUT
(T1/R1)
4 OUT
(T1/R1)
3 OUT
(T1/R1)
2 OUT
(T1/R1)
1 OUT
(T1/R1)
7 IN
(T1/R1)
6 IN
(T1/R1)
5 IN
(T1/R1)
4 IN
(T1/R1)
3 IN
(T1/R1)
2 IN
(T1/R1)
1 IN
(T1/R1)
-
1
-
2
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