Cisco 32-Port Async Network Interface Module NM 32A for Cisco 2600, 3600, 3700, MWR-1941 Series
The NM-16A and NM-32A network modules provide flexible, high-density asynchronous connectivity at a competitive price per port and higher performance than comparable third-party solutions. The modules support V.34 speeds at up to 4x compression (134.4 kbps) over the asynchronous connection. Three examples where this module can be deployed follow:
• Small to medium-sized power branch offices where remote users require modem dial access; a fully configured Cisco 3845 chassis with four async network modules connected to the modem rack enables connectivity for up to 128 dial-in users
• Medium-sized branch offices that require a high-density terminal server; a fully configured Cisco 3845 chassis with four async network modules connected to the modem rack (with optional custom cables) enables connectivity for up to 128 terminal connections
• Telemetry applications, connecting a NM-32A module to private branch exchange (PBX) serial ports, data collection equipment, or router consoles
Cabling
The NM-16A and NM-32A modules support two or four Cisco "octopus" cables. Each cable terminates eight ports, with optional physical endpoints of RJ-45 or DB-25. A NM-16A module requires two cables, and the NM-32A requires four cables. Table 4 shows the available cables and end connectors for use with the NM-16A and NM-32A.
Table 4. Asynchronous Cables for the NM-16A and NM-32A
|
Product Number |
Cable Type |
Length |
Connector Type |
|
Network Module Cables |
|
CAB-OCTAL-ASYNC |
High density connector to eight RJ-45 |
40 inches (1 meter) |
Eight RJ-45 Plugs. Requires an end connector to make a device connection |
|
CAB-OCTAL-MODEM |
High density connector to eight DB-25 |
40 inches (1 meter) |
Eight DB-25 male connectors |
|
CAB-OCTAL-KIT |
High density connector to eight RJ-45 plus eight CAB-25AS-MMOD |
40 inches (1 meter) |
Eight DB-25 male connectors |
|
End Connectors |
|
CAB-25AS-MMOD |
RJ-45 to DB-25 adapter to connect to a modem |
N/A |
DB-25 Male |
|
CAB-25AS-FDTE |
RJ-45 to DB-25 adapter to connect to a terminal |
N/A |
DB-25 Female |
LEDs
The Network Modules have a Network Module status indicator, and one status LED for each asynchronous port.
Network Interfaces
Each Network Module has 16 or 32 asynchronous interfaces.
SUMMARY
Serial Network Connectivity Network Modules Specifications
Table 5. Technical Specifications
|
Specification |
NM-1HSSI, NM-4T, NM-4A/S, NM-8A/S, NM-16A/S, NM-16A, NM-32A |
|
Dimensions (H x W x D) |
1.55 x 7.10 x 7.2 inches, 4 x 18 x 18.3 cm |
|
Weight |
2 lbs., 1 Kg Max |
|
Environmental Conditions |
· Operational temp. 32-104° F (0-40° C),
· Nonoperational temp -13-158° F (-2 - 70° C) |
|
Relative Humidity |
5-95% non-condensing |
|
EMI |
FCC Class A EMI |
Table 6. Supported Features of Serial Network Modules
|
Network Module |
Connector |
Synchronous |
Sync Max. Speed |
Asynchronous |
Full Duplex |
Half Duplex |
Bisync |
|
NM-1HSSI |
HSSI |
Yes |
52 Mbps |
No |
Yes |
No |
No |
|
NM-4T |
DB-60 |
Yes |
8 Mbps |
No |
Yes |
No |
No |
|
NM-4A/S, NM-8A/S |
DB-60 |
Yes |
128 Kbps |
Yes |
Yes |
Yes |
Yes |
|
NM-16A/S |
Smart Serial |
Yes |
128 Kbps |
Yes |
Yes |
Yes |
Yes |
|
NM-16A, NM-32A |
High Density Async |
No |
N/A |
Yes |
Yes |
No |
No |
Table 7. Serial Protocols Supported
|
Network Module |
HSSI |
EIA-232D |
EIA-449 |
EIA-530* |
EIA-530A* |
V.35 |
X.21 |
|
NM-1HSSI |
Yes |
No |
No |
No |
No |
No |
No |
|
NM-4T |
No |
Yes |
Yes |
Yes |
No |
Yes |
Yes |
|
NM-4A/S, NM-8A/S |
No |
Yes |
Yes |
Yes |
No |
Yes |
Yes |
|
NM-16A/S |
No |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
|
NM-16A, NM-32A |
No |
Yes |
No |
No |
No |
No |
No |
* EIA-530 and EIA-530A are supported in DTE mode only.
Table 8. Supported Platforms
|
Network Module |
2600XM Series |
2691 |
2811, 2821, 2851 |
3700 Series |
3800 Series |
|
NM-1HSSI* |
No |
Yes |
Yes |
Yes |
Yes |
|
NM-4T |
No |
Yes |
No |
Yes |
Yes |
|
NM-4A/S, NM-8A/S |
Yes |
Yes |
Yes |
Yes |
Yes |
|
NM-16A/S |
Yes |
Yes |
Yes |
Yes |
Yes |
|
NM-16A, NM-32A |
Yes |
Yes |
Yes |
Yes |
Yes |
* Cisco recommends a maximum of one NM-1HSSI in a 2691, 2800,3725, or a 3825 and a maximum of two NM-1HSSIs in a 3745 or 3845.
Note: Please see the Software Advisor for minimum IOS versions required to support a specific network module in a specific router.
