ldaps connection problem

[Spleshmen]

First i want to say hello all,second i need your help

i am trying to connect to a ldaps server from another server.

i got all the information i need to connect to the ldaps server (host,port,password,bind_rdn - second parameter from ldap_bind,base_dn - second parameter from ldap_search) and 2 certificates the SSL CA and Root CA generated from the ldaps server.

i never used the data from the certificates on the server i am trying to make the connection with the ldaps server.could that be the reason why i cant establish a connection?

here is my code :

$config = array(
'host'	=>	'ldaps://***.com',
'port'	=>	some int
'bind'	=>	'uid=*,dc=**,dc=**,dc=**',
'pass'	=>	'**',
'dbase'	=>	'dc=**,dc=**,dc=**'
);
$c = ldap_connect($config['host'],$config['port']);
if ($c==FALSE) {
echo 'Error ldap_connect';
}
else {
       $action = ldap_bind($c,$config['bind'],$config['pass']);
if ($action==FALSE) {
	echo 'LDAP bind fail <br/> ';
	echo 'ldap_error : <b>'.ldap_error($c).'</b>  <br/>';
else {
	echo 'LDAP bind true';
}
}

the error i am getting is Can't contact LDAP server

thats about it ... thanks