Nortel Secure Router 4134 Installation — Hardware Components page 33

The following figure shows the 2-port Serial Small Module.
Figure 8
2-port Serial Small Module
You configure each serial port using the Command Line Interface (CLI).
The Secure Router 4134 detects any configuration mismatch with
connected cables and signals an error with a red LED.
Table 6
Cable and connectors
Port
Connector
Serial Smart Serial
26-pin
Copyright © 2007, 2008 Nortel Networks
.
Interface modules for the Secure Router 4134 33
Recommended
cable type
V.35: Up to 11
twisted pairs
plus grounds to a
34-pin MRAC-34
connector
X.21: Up to 7
twisted pairs
plus ground to a
DB-15 connector
RS-232/V .28:
Up to 11 signals
plus ground to a
DB-25 connector
RS-449/V .11:
Up to 11 twisted
pairs plus ground
to a DB-37
connector
EIA-530/A: Up to
11 twisted pairs
plus ground to a
DB-25 connector
Nortel Secure Router 4134
Installation — Hardware Components
NN47263-301 02.01 Standard
18 February 2008
Minimum
Cable length
cable length
summary
None V.35, X.21,
RS-449/V.11,
EIA-530/A: Up
to 1000 m (3 280
ft) at 100 Kbps,
100 m (328 ft) at
2 Mbps
RS-232/V.28: Up
to 100 m (328 ft)
at 9600 bps, 10
m (33 ft) at 100
Kbps