Dual V.35 Wan Interface Card; Figure 38 Dual V.35 Wan Interface Card - Nortel Contivity 1740 Installing

86 Appendix A Technical specifications
Table 25 X.21 cable pinouts (continued)
Standard-wired
end 28-pin male
1
7
The following notes apply to the single X.21 cable:
1. Wires of pair 4 connect to wires of pair 5, but not to any pins in the DA-15.
2. The term "no conn" means the wire is not connected to a pin in the 15-pin connector.
3. Wires 13B and 14B connect to pin 8 in the 15-pin connector.
4. At each end, the cable shield and connector shell must connect to pin 1 of the connector.
5. Do not interconnect Shield to Signal Ground because these are separate signals.

Dual V.35 WAN interface card

The dual V.35 WAN interface card has two DB26 connectors that provide the
signals needed to interface to V.35 equipment.
WAN interface card.

Figure 38 Dual V.35 WAN interface card

You need a DSU/CSU (digital service unit/channel service unit) between the
WAN connection and the gateway. This section describes the connector and cables
used with V.35 WAN synchronous adapters.
If you build your own V.35 DTE cables, observe the following guidelines:
• All connector hoods must be metal.
• Braid must enter and make contact inside the metal connector hood.
• V.35 conn strain relief must be conductive.
317086-B Rev 00
Signal name
SHIELD
SIGNAL GROUND
Pair number Standard-wired
and conductor end 15-pin male
pair 14A 1
pair 14B 8
Figure 38
Notes
Note 4,5
Note 3,5
shows the dual V.35
CS260016A